The July issue of Nuts and Volts magazine has a clock project which uses an 18x to control 2 stepper motors. The article points to this site: http://picaxe.pertneer.com/
thanks for the interesting link. Quite a range of unusual clocks there.
While Nuts & Volts cover one of pertneer's clocks,
alpacaman posted (and built) a "wood clock" like the one pertneer has on his website. See alpacaman's thread at http://www.picaxeforum.co.uk/showthread.php?t=11696
at least one of the "magic" projects has been discussed on this forum as well.