i have one that, don't quote me on this but i am pretty sure is by silly billy. I can't remember the name of it, sorry, but I did have a thread on this a year ago i would say, look there for a bunch of wands. In any event, the gag wand that i have can be bent and stretched to make a bunch of different shapes. And when it is stretched it makes this loud obnoxious noise that sounds pretty funny.
Yeah, it's by Silly Bill - I have one as well
The Gag wands I have:
Silly Billy Wand