Silent Running "Dewey" drone walker robot with electronics

I would try investigating Theo Jansen's work for walking mechanisms. ;)

 
Absolutely! My favorite design, for sure. I also am enamored by these hexapod walking mechanisms. They're basically just two DC motors and some gears but it'll go anywhere and is really cool and simple.409-5062_hexbug_battle_spider_both_colors-247x296.jpg