I wasn't sure who would be next to take interest in the project, but interestingly, I talked to a nice professional, Rachel, over the phone recently, and she said she had seen my website and wondered what #TakeASketchLeaveASketch was. I told her I'd be happy to send her a sketch as long as she sends one back.
Last night I sketched this gem and enclosed it with 4 blank papers so she can others can send their sketches back to me. We'll see if it works!