How about a daily sculpt/modeling challenge.

No.511919 ViewReplyOriginalReport
We pick something very simple to create and we all give ourselves something like an hour to see what we get. It can be any stage of completion just modeled / sculpted not textured or rendered etc. We vote on a winner then they get to decide what to make next. I really like these rise of the tomb raider props or we could pick something from real life as long as it's simple enough to do.