a.k.a. Tricky Disk, Mind Trapper
(plastic, 2.4 inches diameter, 3.5 inches prong to prong)
This is a later version of the
puzzle that was patented in 1983
(different cosmetically, but the same puzzle).
The two copies of each color are distinguished by a small circle or triangle
(instead of one or two dots as in the case of the Hungarian UFO),
and these same markings are on each end of the color bars on the body.
Here is a simpler three-prong version and the directions that were sold with it:
Made in China, 2007, body is 2.2 inches diameter.
International Patent, DE3,821,297.