I got a great idea from another person on this board. You put a box of crayons into a paper bag. (Except maybe the black and white). Then each person draws a crayon and they have to make a quilt using that exact color as a predominant color. The quilt can be any size you want. But you have to turn in the crayon with the quilt at the end of the time period so people can see how close you came to your crayon color. Then I had a "viewers choice" winning at the end of the challenge. I had almost 50 people sign up for the challenge and ended up with easily 25 quilts to be judged. Everyone seemed to love it. The challenge before me had only about 10 people sign up for her idea. And the one after mine was so confusing I didn't even join in.