He got his cast off after 3 weeks.  He was so use to it he did really want to get it off.  We were glad it finally came off though.  He discovered you could hit it and it made noise, it could be a weapon and it made noise when rubbed up against it. He would even tell us he couldn't do thing since it was broken.  Even after he got it one he told us he wanted to go get a green one on the other hand.  To get it off they cut it down on each side and then use plyers and pulled it apart.

 I guess they said it still would hurt to move it since he was in one position for a while.  He was telling me it hurt in the picture.

 Holding his cast up.