During the time I was thinking about this project there was always a question, what kind of cap should I use for it.

I went through many stores, trying to find a drinking glass (from glass or plastic) what could be suitable. Found nothing, even I was thinking about 3D printing it from some kind of transparent material, but the cost was high.

You never know, where can you find a solution for a problem.

I was on vacation in the recent weeks. When I was looking around in a gadget shop in Copenhagen, I found this:

I don't know, what it is, most probably a glass flowerpot. Honestly I don't care, what the original purpose of it. It will serve as the cap for my project.

Additionally, yesterday Erich Styger of MCUONECLIPSE, started to write a blog series on connecting Adafruit Neopoixels to the FRDM-K64F board:

http://mcuoneclipse.com/2015/08/01/tutorial-adafruit-ws2812b-neopixels-with-the-freescale-frdm-k64f-board-part-1-hardware/

I'm very happy about it. It will save me lot of time writing the code for this project.