My friend, Tom Blue Newell, Uncle Scam, Deacon Blue, Nostrildamus, a Harvard Square busker and street performer ( http://www.unclescam.org ), stopped by this morning.  He’s thinking about a new show, especially since he expects to be recuperating from an operation this season.  He wants a “Rascal,” a motorized wheelchair with solar power that might also serve as a puppet in his show.  He already uses an amp for his performances and has a battery system mounted on his cargo trike.  He even has a little bit of solar.  He envisions a solar awning to charge the batteries that can run the wheelchair and power his audio and other equipment, too.  He also needs a place to keep it in Harvard Square.  He’d like something in the works within two weeks and a usable machine within two months.