I don't know if I managed to get all of the pictures here, but it's a lovely range of ideas:
I decided to take weekends off the challenge, so I don't get too tied in to Twitter, but Ed Finch took it up and kept it going Saturday and Sunday!
Do check the #ShapeChallenge hashtag to see all the amazing drawings made using Ed's shapes!
And here's Monday's new shape. Have fun with it! :)