Here are three of my favorite photos taken with a cycloid tool that I built in 2011 consisting of a circular wooden board with circular LED fixtures attached to it, rotating on a paint roller handle.
The white LEDs had color gels glued in. I still find the spectrum of color gels more appealing than RGB LEDs.
Unfortunately the tool fell in a pond many years ago after the handle broke off under heavy use. Many have used a bicicle wheel for similar effects which has the advantage of being ready for all terrains, unique this lost relique.
For more examples of innovative and original light painting please give my light painting comrades a follow: @fadetoblack @dawnoner @mafufuma @fastchrisuk @martbarras @stefan.stepko @rod.evans.visual @yo-hoho @maxpateau and check out our Hive Community Lightpainters United