DIY 16th Birthday Balloon Mosaics numbers - Large party decoration idea - How to make tutorial - free template

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Sixteenth birthday in quarantine. :/ 
We tried to still make it special and he was thrilled! He loved all the decorations.


Foam boards purchased at Dollar Tree.

Tape template together and cut out.



Tape template to foam boards and trace.

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.


I like to make the base of rounded numbers flat so they stand. This is easier with just one number. If you have two numbers you need to measure so both are the same height. 

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 lightly score lines 1" - 1 1/2" apart on a side piece.

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

My helper :)


I filled this set with almost all 5" balloons. 

I attached balloons with a low temp glue gun.

I used a hand pump to fill the balloons and used almost all 5" balloons. I filled with 1, 2, or 3 pumps of air. The 12" gold balloons are filled ramdomly.

200 - 5" balloons and 40 -12" balloons.


I just stacked toilet paper as a joke and found the 16 and Quarantined cake topper on Etsy.


I added the same color balloons on balloon stands and placed on either side.

Instead of a cake he wanted a fluffy oreo cheesecake. Yum!!!



I have a few other video tutorials. Each one shows a little different detail - printing, making them, filling, etc. Additional info based on questions I received from people.   





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