Stair climbing 100% autonomous robotic vacuum that cleans animal mess, no one has done this yet. I will admit it's very tricky but i'm sure it can be done! : )
Other robots from Synthiam community

Khanflicks's Minion Project - Help With Eyes / Mouth
Hi everyone! My name is Sohail, owner of YouTube channel KhanFlicks, and am seeking help for my robotic Minion project....

Tameion's Lawrence The Butler
Okay heres a bit of a tangent but if you follow my thinking for a bit youll see where Im coming from and hopefully going...

Mickey666maus's ZOE : A Machine That Resembles A Living...
Since my robot is running on a Raspberry Pi, which is now supported by ARC, I decided to evolve my current project K[8]...