Blinking Iris Goggles with Battery Holder

In order to make some [Blinking Iris Goggles](http://www.thingiverse.com/thing:1833286) with [LED rings](https://www.sparkfun.com/products/12664) in the eyes, I'll need to supply it with power. Since there are already two strands of fishing line hanging from the goggles (to actuate the blinking), I decided to put [a battery](https://www.sparkfun.com/products/341) holder right on the goggles instead of having a wire going off into a pocket somewhere. I also wanted a way to detect actuation of the