Make your party pop with DIY giant display numbers (or letters)

Make your Party Pop with DIY Giant Display Numbers (or letters) | Cardstore Blog

Even though I have a little over a month to go, my 30th birthday (eek!) is fast approaching! Taking a cue from Elizabeth’s tip to plan ahead for parties, I’ve already gotten a head start on some of my party decor. That’s right, with the help of my boyfriend, I’m throwing my own birthday soirée!

Since this is such a milestone birthday, instead of hiding my age, I decided to embrace it and really show it off. What better way then to display a giant 3-0?

How to make DIY giant display numbers:


  • 2 large pieces (30″x40″) of matte board for each number/letter (cardboard or foam core works, too)
  • 2-3 sheets of poster board for each number/letter, cut into 6″ wide strips (used for the sides in steps 4 & 5)
  • Masking tape
  • 8 small (8 oz.) foam coffee cups for each number/letter
  • Hot glue gun
  • Spray paint
  • Drop cloth

How to make your own giant number/letter display | Cardstore Blog

After you’ve constructed your giant numbers/letters, I would suggest using spray paint since they’re so large! I found that my local arts & crafts store carried artist-quality spray paint in a huge variety of colors (vs. what I could find at my local hardware store)—you could also try an online art store if you’re looking for a specific shade.

The finished piece - my giant number display (you can make letters too!) | Cardstore Blog

I decided to paint my numbers two-tone with a couple of the colors I plan to use for my other party decorations. After putting down my drop cloth, I painted my numbers about 3/4 of the way down with my first color, and then started to lightly spray with my second color around the middle of my numbers. I avoided full coverage here, so that it would look like a fade from one color to the next, and increased my coverage as I moved down to prevent any show-through. The painting process was quick, and it didn’t take long at all to dry (15-20 minutes)!

I can’t wait to show these off at my party! If you make your own party display, I would love to hear about it!


About Gwen Bucknell

3 Responses to “Make your party pop with DIY giant display numbers (or letters)”

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  1. Becky says:

    Great project. The design is super forgiving. I made these for my parents 50th because I could not find any in the store.

    • Gwen Bucknell says:

      So glad this was helpful for you! I thought it was pretty forgiving too, from a distance you can’t see that it’s not perfect…and they look great! Hope the party is (or was) amazing :)

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