Messing around with Bushmill's oscillator and happened to stumble on this bit of eye candy thought it's worth sharing :)
Ofcourse it can't be made into a real circuit, just an effect of the EC simulator
The oscillator itself is interesting. It clocks by loading a hi state into latch A on startup, A will count up one to B, B will count down one to A, and so on. There are no gate delay to counters, so this is clocking as fast as EC can!