[HANASHIR:10932] opening with humor

[Aura Ahuvia <progdir...>]

Hi all,
I'm looking for opening songs that might warm up a group of parents and bar/bat 
mitzvah  age kids. 
Are there "funny" songs that would get everyone engaged right off? For example, 
on Friday nights, my rabbi has a good little-kid warm up, dividing the room 
into 4 parts with each part singing "sha," "bat," "sha" or "lom" depending on 
whom he points to. What would work with an older crowd?
Thanks in advance for all of your ideas,
Aura