I just want to jot down the design process for this build.

Nobody likes cold coffee or tea, or a warm soda either.  I've been mulling over this idea for a long time now and the coin cell challenge gave me the final push to make a go at it.  

I basically knew that a coin cell was a must. I remembered that the ATTiny85 also works on just 3v! So i began thinking up what else i needed

I began searching for some low power RGB LEDs.  Of the ones i was able to dig up, they seemed a bit more complicated to utilize and I really wanted more color options and functionality that I am used to with the Neopixel / WS2812.  I found that they make a smaller version of that the SK6812 and hope that the current draw isnt too big on the CR2023

I wanted to coat the whole thing in a clear resin to protect the board whilst giving a medium for the LEDs to shine through.  

I whipped up a board in Eagle and sent it off to the lads at OSHPark