RedFive, that illusion is really cool. Can you tell me where it came from? I would love to know more about it, like why it works, are the little red marks necessary, how can it be defeated, etc. Or did you create it yourself? It's really interesting.
Like me and George Carlin say, if people hold up numbers, it's NOT a sport. That said, the pogo jump/spins are always a spectacle.
I think I'll add a new twist to this one- once we start comparing the size of our reproductive gear, disc dyeing is NOT a fun hobby.
Tim, I don't get that last one. The white dots seem to either disappear or turn black when I don't focus on them, but is there another illusion there? This thread is starting to make my eyes hurt. We should post up some dyes that are less challenging to look at.