From the Adafruit forums – user iraytrace presents the Glove HandBlaster.

The Story
We have all used our thumb and index finger to pretend to shoot something. Numerous people have made their own sci-fi “gun” for cosplay. However, I wanted to take this to the next level. I wanted to create a “gun-less” blaster. When I point my finger and flex my thumb I want lights and sound. In addition, I want to be able to get lights and sound when I raise my hand to use my psychic powers.

I settled on a Circuit Playground express as the platform of choice. The size nestles in the palm of my hand very neatly. The buttons make for easy controls that I can press simply by curling my fingers into my palm.

In the simplest form, this can all be accomplished with these:

Terramar Thermasilk Glove Liner: https://www.amazon.com/gp/product/B000J … UTF8&psc=1
Circuit Playground Express: https://www.adafruit.com/product/3333
LED Sequins: https://www.adafruit.com/product/3377
A Lithium Ion Polymer battery such as: https://www.adafruit.com/product/1578
2ply conductive thread: https://www.adafruit.com/product/640

Check out the entire post with information in the Adafruit Forums here.