EDIT : You can see a robot that does this sort of thing here.
This week's inspiration is somewhat advanced: construction robots. Can you make a robot that builds something, on its own, out of LEGOs? It doesn't have to be another robot, or even something very complicated. You could have a robot build a wall, for example. Or you could have a pallet of pieces, arranged in the right order, that a robot selects and puts together on a workspace.
You can see some (very) elaborate examples of construction robots in the Aircraft Factory and Car Factory. Obviously, you probably wouldn't make something like this, but maybe a small, simpler, version would be possible.
Let us know if you make one!
P.S. See other posts in this blog series here.