The Conductor:
Design on thingiverse:
More pictures (GRA forum):
https://forum.roboteers.org/gallery/index.php?album/34-antweight-the-conductor/
Fahrat:
This bot has supercaps instead of a battery, because… reasons. Advantages are few to none, but I had the idea in my mind and wanted to see if it can actually work. In it are two 100F caps in parallel. Their voltage is boosted up to around 7V (I do not remember which voltage I set the booster up for).
And yes, the name is written wrong on purpose.
More pictures (GRA forum):
https://forum.roboteers.org/gallery/index.php?album/33-antweight-fahrat/
Bumbum der Zerstörer:
Built that one as a christmas present for my brother some years ago.
More pictures (GRA forum):
https://forum.roboteers.org/gallery/index.php?album/18-antweight-bumbum-der-zerstörer/
Hackfleischhassender Zerhacker:
Have fun trying to pronounce that name correctly English natives 
More pictures (GRA forum):
https://forum.roboteers.org/gallery/index.php?album/19-antweight-hackfleischhassender-zerhacker/
Entomat (V1 & V2):
Design on thingiverse:
More pictures (GRA forum):
https://forum.roboteers.org/gallery/index.php?album/17-antweight-entomat/
Kannnix:
More pictures (GRA forum):
https://forum.roboteers.org/gallery/index.php?album/31-antweight-kannnix/
Zwuckienator & Spiky:
Based on the electronics of an old remote controlled Lego model with an infrared transmitter.
There were two of these guys and they were mainly used on trade fairs to let the vistors drive them all day long. They are/were powered by 3x aaa batteries. The bots are retired by now as the infrared remotes are quite unreliable.
Arduino Ants:
These are the successors of Zwuckienator and Spiky. Initially built with a 2.4GHz Arduino based transmitter and receiver. That did not work too well, so they currently run on Flysky transmitters instead. Sooner or later I want to get back to the Arduino stuff, at least to give the name some credit again. I recently built two more of them to be prepared for the next trade fair. One in the picture the the previously presented supercap bot which obviously shares the design.
Design on thingiverse:
More pictures (GRA forum):
https://forum.roboteers.org/gallery/index.php?album/29-arduino-ants/&sortField=showOrder&sortOrder=ASC&pageNo=1
Check out my other designs on thingiverse:
And also check out the German Roboteers’ forum. If you do not speak German, at least the picture gallery is worth a look. 
https://forum.roboteers.org
Best regards from Germany!
finger.im.ohr