Well it's not going to win any races, but cool nonetheless.
Cleverly Designed LEGO Flip-Walking Trolley

This is a video demonstration and build discussion of the LEGO Flip Walker constructed by LEGO fanatic JK Brickworks after being inspired by a rare 1980’s Bandai model that moved using the same technique. Pretty neat. I wish I was clever enough to design stuff like this, but as it stands I just installed a new deadbolt on the front door with the lock on the inside, so that’s about where I’m at on the clever design front.