GREAT GREEN GOBS OF GREASY GRIMY GOPHER GUTS goes over well(then try and sing it twice as fast). When I do TEN IN THE BED the last line I use is "I'm lonely!". AIKEN DRUM, where you get the kids in turn to name their favorite food, and then use that food for a body part.
I also let them try out instruments(with me holding the guitar, or banjo, or autoharp, fiddle, etc., and doing the left hand work, the tambourine I let them do by themselves). If you go to You Tube and type "Mark Ross, Children's Concert", there are two videos of me leading the kids around the city library playing train.

Mark Ross