Toy Marble Run Piece - Smile

My 6 year old son came to me with a drawing of a new marble run piece he wanted me to make him to go with his marble run set. After some explanation as to what he wanted, I took his ideas and created this, which was, according to him, very close to what he wanted.

Print lying on it's side, with the 1mm wide support piece down. You nay need to do some minor clean-up after printing. Some of the overhangs bridged on my print instead of sticking to the main body and I had to clean that up. I