The world of third party accessories for Masters of the Universe Classics figures is exploding right now and I could not be happier. One of the vanguards of this movement is Joe Amaro and his Warlords of the Universe accessories, the latest of which are the hover discs.
The foot pegs work perfectly with most MOTUC figures (Trappy needs a little blu-tak help) and some Star Wars black figures, though they are light enough that you could blu-tak them in place if neccessary.
Joe has mentioned the possibility of repaints on his facebook page and there is a survey for future colors you would like to see up on WarlordsoftheUniverse.com.
He has also shown designs for a more advanced hover cycle and shown WIP shots of very Skeletor trooper like head sculpt, so keep watching Amaro Studios and Fwoosh for more cool toy news!