TBB’s own Simon Liu has been busy at Brickworld and these micro AT-STs were a small part of a larger Star Wars: Battlefront display. The AT-STs are delicately balanced and ingeniously built at such a small scale. The background is a microscale version of Alex Doede’s bunker.
 

Simon says that these are in the tiniest form he can do, but I reckon there are some nano AT-STs out there waiting to be built.