USA balloon mosaics - 4th of July party decoration idea - How to make tutorial and free letter templates - Red, White, & Blue large decor

This post may contain affiliate links. Click here to learn more.

I made these templates a while back hoping we would be able to have a party for 4th of July. Well, no party but I'm still decorating. I had so much fun making these 5ft tall letters. I have the free template, just email me. 


I'll update with pictures of them filled with balloons. I was too excited to share so I only have pictures of the frames. 
  I'll probably make a video for these letters as well. Same process. 
UDATE video:

I have four other video tutorials on how to make the mosaic numbers.

Open PDF file in Adobe and print as a poster. Change to 500% under tile scale. 
Print in grayscale and in draft mode to save ink.

UPDATE: To use less paper - don't click CUT MARKS or LABELS when printing.

All the pages had a small white border. I didn't worry about all the pages matching up, only the edges of the letters. 

Start with the pages horizontal and go across the top 4 pages. Then start the next row below it. 

I always tape the center first and work my way out. This way it's easier to match up all the lines.
Cut the letter out.

It takes 3 foam boards for the back or base of each letter. 
For each letter you need about 7-8 pieces for the sides. Total you will need 6 - 20x30 foam boards. 

Use a box cutter or exacto knife to cut from the foam board.
I'm using these from Amazon since you can just pop the end off and have a brand new blade.

Measure 6"-6 1/2" template and trace for each side piece. I used 6 1/2
Cut each board into 3 pieces for the sides. 

For rounded edges on the letter U and S, lightly score lines 1" - 1 1/2" apart on a side piece.

Don't forget to use the excess board from the back or base of the letters to cut side pieces.

I put craft paper down since it gets a little messy attaching the sides with hot glue.

The U & S are rounded at the bottom and a little taller than the A.
I used the A to measure how much to cut off the bottom of the U and S. This worked out perfect to make the bottom flat to allow it to stand up. Double check it because I think my U still looks taller than the S. 

I attach sides with hot glue but you can also use tape.

I ordered all my balloons from Amazon and the foam boards from Dollar Tree. 
I'm a huge fan of Qualatex balloons but couldn't find everything I needed or get it delivered in time.

Ready to fill with balloons!

Balloon placement but not attached yet. I'm trying a low temp hot glue gun this time. 

The low temp glue gun is so much better. The balloons do not move. It does take a bit of time to wait for each one to dry and you have to watch out for glue strings. I don't think I'll use glue dots anymore.

Since they were going to be outside (and it was windy) I made a brace in the back. The letters are slightly leaning back. 

I used a weight to hold them down. Worked perfectly. 

UPDATE: Bonus! I won $100 for the best 4th of July decorations!! :D
The cute dog *might* have helped and I think he wants me to share. 

I also have numbers available. Just email me!

You may also like these blog posts:

Thank you for visiting my blog. Any questions? Just ask! 

Follow, like, follow, subscribe!


  1. Thanks for the tutorial elena I watched all of them they are super helpful, thanks for the number templates,can you email me the letters!

  2. can you please email me the number 2? Thank you.

    1. Emailed! Let me know if you have any questions.

  3. Hola! Bello trabajo, podrĂ­as enviarme los nĂºmeros a mi correo por favor.
    De antemano gracias...

    1. Thank you! Just emailed. Let me know if you have any questions.

  4. Great tutorial.
    Could you email me PDF number 1 and 2.
    Thank you

    1. Just emailed! Let me know if you have any questions.

  5. Hi I watched your tutorial on the USA sign and I loved it, it was lovely. I am interested in the letter S and the #8 for my son's upcoming birthday in 19 days and would like to know if there is anyway that you could share those templates as I would like to make them for his birthday. If so please email to .Thank you

    1. Just emailed the number 8. I will email the letter S later tonight. It's on a different computer. Let me know if you have any questions.

  6. Hi you are amazing I love watching your videos. May I please have your numbers and letters template.Thank you

    1. Just emailed! Let me know if you have any questions.