A guide to creating illuminated shapes with balloons and LEDs. Although this instructable demonstrates how to create a red-illuminated balloon heart, these techniques can be used to create most any shape (possibly 3-dimensional) of your own design. The actual assembly of this example took approximately 2 hours to complete.
Step 1: Materials
The materials needed for this project include:
-20 latex balloons
-20 3v coin cell batteries
I used red LEDs and pink balloons, but any colours will do.