Musical Balloons

Buy balloons on Amazon (paid link)
Buy an air pump on Amazon (paid link)

Musical balloon symbols often used for decorations and signs.
Please check ABC and Numbers pages for more examples you may use for making all kind of signs.
And there is more examples on arches and Balloon fabric pages for attaching or hanging signs on.

Balloon Guitar

Musical Symbols Balloons

Balloon treble clef

Balloon saxophone

One balloon guitar