It's COLD in VT in the nights, so I've taken up a new hobby of learning about LEDs...mainly Neopixel strips and either the Gemma or Flora wearable computer platform, powered by lipo batteries.
1st up - my Firewalker LED shoes...these are an INSTANT conversation piece! I coded them up using a pressure-sensitive conductive sheet called Velostat so they only turn on when you lift you heel.
Next - decided to try a dog collar (which I've made and sold about 6 of these @ $100 to my friends...actually opening an Etsy store to see if there's further interest?). They cost about $40 in parts alone, and the battery recharges via USB. I've made a library of a dozen or so LED patterns and going to program a ton more...USA/America theme, etc. The next phase is looking into the ability to save and change LED patterns on-the-fly via a mobile app! Here's a few patterns to give you an idea...there's nothing like these on the market!
https://www.youtube.com/watch?v=U4AmOWx1IJI
Then came the LED goggles! Have 2 orders for these as well @ $100...they are mailing me their goggles to add the LEDs to.
And how could I not pass up the opportunity to turn an old snowboard helmet into the ultimate LED discoball helmet???
As a single guy...you can see I have a lot of extra time on my hands