This is probably the simplest, shortest, and likely lightest walking                 
machine made with legos so far. It stands less than an inch tall 
and uses only six pieces. There is also an alternate version that 
uses five pieces and a larger base for balance.  It stomps along 
pretty well and doesn't drag on the ground. Hope you like it! Also,
I'd like to thank Philippe Hurbain for the pictures and for testing 
designs for me.