Howdy, Folks! EJ Here.

Xisuma was working on a color- cycling beacon on Hermitcraft, but ran into some issues. I made an alternate version of the machine that works.  However, I have not made it very efficient or small, yet.
Downloads and videos on this page.

This redstone contraption works in any recent version of minecraft, but is only useful for the 1.8 update where beacon beams can have color, or the mod that does the same.

Link to my other post where I have compacted the redstone--->    www.planetminecraft.com/project/magical-rainbow-beacon-compacted/

Link to Xisuma's Vid:  www.youtube.com/watch?v=pTTrIOGBuH8