DIY 3D SpongeBob Invitations

Hello Friends!  It’s that time again, our monthly Silhouette Challenge Group Post!  Yippee!  This month’s challenge theme is KIDS CRAFTS!  And as always, our fellow Silhouette Challenge Group have some pretty amazing products to offer up!

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There’s never really a shortage of kids crafts in our house, being surrounded by three of the little monsters.  This one in particular, though, I made from my nephew’s fourth birthday party and he was sssooooo excited.  The concept is easy, but there are a few hints and tips we have to pass along.  Introducing, our DIY 3D SpongeBob Invitations!

DIY 3D SpongeBob Invitations by My Paper Craze

Aren’t they adorable?!?  Although they’re slightly more expensive than printable invitations, our guests (kids and parents!) went gaga over receiving these invites!  When you see just how easy these are, you’re liable to go gaga too!

Supply List

> Regular kitchen sponges (I get mine at the Dollar Tree, they come in 2-packs for $1.00)

> A cheapo box cutter (another Dollar Tree special, you’ll need one box cutter per each 10 sponges)

> Hot glue gun (low-temp is easier on the hands)

> Straight edge cutter (or scissors)

> Cardstock (to print the invitations on)

> Invitation Cut File

Step by Step

1.  As soon as possible, open all your sponges and lay them out to dry.  This is essential, you cannot cut the sponges when they are moist, which is how they come in the packaging.  TIP: I have been know to lay them on the dashboard of my car when driving to expedite the process.  Alas, budget about 24 hours for the entire sponge to dry.  TIP #2: Do not be tempted to put the sponges in the dryer, this makes them do weird things and your invitations end up ruined.  Something about the outside being dry but the inside is still moist, so they become disfigured when they dry AND the moisture ruins your cardstock invitation.

2.  Using your box cutter, you’re going to remove the abrasive side from the kitchen sponge.  Please be careful, we don’t want to lose any fingers!  Literally stand the sponge on it’s side and slice as close to the abrasive side as you can so you have lost of sponge left.  The (cheap) box cutters seem to dull after about 10 sponges, so keep a fresh one handy for the next batch.  It is very frustrating (and almost impossible) to cut the sponge with a dull blade.

DIY 3D SpongeBob Invitations by My Paper Craze

3.  Now that you have a nice little pile of sponges, it’s time to put your invitation file together.  This was tricky for me because the first time I made these beauties, I didn’t have a Silhouette (I know!).  But now Silhouette Studio is my go-to for designing files, which is great because then I can also use the print-n-cut features!  I can’t give away the file since SpongeBob images are copyrighted by Nickelodeon, but here is ultimately the design you are looking for.

DIY 3D SpongeBob Invitations by My Paper Craze

4.  Print your invitation file and cut off all the white area.  Always measure your sponge to determine the sizing of your invitation.  Print a test copy, cut it out and see what you think.  You can cut these out one of three ways: 1) use the Silhouette cut file (highly recommended), 2) use your straight edge cutter or 3) grab a pair of scissors.  Your choice.  You’ll need a front (SpongeBob) and back (invitation) for each sponge.

DIY 3D SpongeBob Invitations by My Paper Craze

5.  Once satisfied with the invitation to sponge ratio, grab your hot glue gun and go to town.  I find that applying the glue (low-temp) to the back of the cardstock in an “X” fashion gets the best results for flat edges.  Once you apply the glue, line up the bottom (SpongeBob’s shorts) to the bottom of the sponge, making sure the invitation is even on both sides.  I like to leave a little sponge on each side (left, right and top, not bottom), but it’s up to you where you put it.  If you are using a low-temp gun (suggested) you don’t have much time, so don’t delay in adhering it to your sponge.  Repeat for the invitation side.  TIP: once you have the cardstock in place, turn the sponge over so you can press from the underside.  This will help get a good stick with the glue and save your fingers from feeling the heat through the cardstock.

DIY 3D SpongeBob Invitations by My Paper Craze

So what do you think?  Easy-peasy, right?  Truth be told, it’s more of an assembly line process, so if you plan to make about 50 of them, be sure to space it out or you might get tired of SpongeBob sooner than you think.

DIY 3D SpongeBob Invitations by My Paper Craze

These are great for parties where you can hand-deliver invitations or pass them out at school.  If you plan on mailing them, you can use regular envelopes but the postage will be more.

Want to Check Out More Silhouette Projects?

My Silhouette Challenge buddies and I are all sharing projects on our blogs today, so peruse the projects below for a wealth of Silhouette inspiration!

DVD Case Coloring Kit Personalizing Kids Stuff without Names "Tiny Dancer" Dance Bag DIY Future Mr. Darcy Onesie ExtraCared for Onesie DIY Burp Cloths with Appliques Adorable DIY Baby Onesies! DIY 3D SpongeBob Invitations Personalized Potty Chair & Potty Training Targets: Ready, Aim, FIRE! baby gift ideas using your Silhouette Machine

1. unOriginal Mom // 2. Architecture of a Mom // 3. Crafty Bonds // 4. Simply Kelly Designs // 5. Weekend Craft // 6. Cutesy Crafts // 7. DIYJustCuz // 8. My Paper Craze // 9. Where The Smiles Have Been // 10. From Whine to Whine


  1. Meredith @ unOriginalMom

    I never knew sponges were moist in the packaging when you buy them! Great tips for pulling together these invites. And they’re so fun!

    1. Becky Dykes (Post author)

      They were so much fun, and not too bad to make in terms of invitations! And yes, that darn moisture will get you every time!

  2. Kelly of Simply Kelly Designs

    Using sponges for these invitations is so clever! I bet these invitations were a big hit!

    1. Becky Dykes (Post author)

      Thanks, Kelly, they sure were! Glad you stopped by!

  3. Rachel Seaman Joyce

    This is super cute!! Love how they turned out.

    1. Becky Dykes (Post author)

      Thanks, Rachel! I was pleasantly surprised, myself!

  4. DIY Just Cuz Team

    I’ve been wanting to know what this project was as soon as I saw the little picture–and it’s just as cool as I thought it’d be! This is so creative…you did a great job 🙂

    1. Becky Dykes (Post author)

      Thanks, Brittany! I do the same, browse the pictures as soon as the code comes out! I loved your onesies, too! SO cute!

  5. Mackenzie Smith

    This is such a wonderful idea! What a creative way to do the invitations.

  6. Christine B.

    These are just TOO CUTE! And so original and perfect and clever. 🙂 I don’t think there could ever be better invitations to a Sponge Bob party!

    1. Becky Dykes (Post author)

      Thanks, Christine! They sure were a huge hit, can’t wait to use them again for the next kid!

  7. Leslie

    This is absolutely too cute!

  8. Millie

    LOL…This is way too cute!! Fun too!
    Have a wonderful day,
    Crafting With Creative M

    1. Becky Dykes (Post author)

      Thanks, Millie! Glad you stopped by!

  9. katjeter

    OMG, you have got to be kidding?! That is just about the cutest, most creative invitation I have ever seen! I love it!

    1. Becky Dykes (Post author)

      Awww, thanks! When you watch SpongeBob non-stop, you got to figure out an outlet for it, lol.

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  11. Jessica @ Cutesy Crafts

    Oh my gosh! What a cute idea! Now I just need to convince one of my kids to have a SpongeBob party.

    1. Becky Dykes (Post author)

      LOL, right Jessica! You can always throw one for yourself and do a little Bikini Bottom pool party for the summer!

  12. Raven

    Where do I find the invitation file ?

  13. Raven peeples

    How do I get the invitation file ?

Comments are closed.