This is how we made accessories for the robot.: First, Rose and I made four walls stuck together in a square. This will be used to trap something and drag it to wherever we want it to go. We will want totrap and drag bacteria (and the bacteria is really lego of course) back to base. The base is the white square on our board where we can touch the robot. It is the starting point of our robot. Next, we made an extension for our trap. This extension will eventually be pushed against a lever that will then push over a bucket that then drops stuff into the trap. We tested this and good news, it worked.