Eyetwisting

I can't think of a better title than the one Ingeborg has chosen for today's Abstract Thursday challenge.

This is the business end of the kaleidoscope I bought recently.  It doesn't have little pieces of glass inside, it has a glass sphere at the end, inside which are all sorts of coloured facets. Turning it changes the patterns you see when you look through the triangular hole at the other end.  I don't know enough about glass-making to even guess how it was made.

I've twiddled the image a bit in TinyPlanet to make it even more eye-like and twisty.

Thank you Ingeborg for a fun idea!