How 'bout a male model with disembodied legs and stiff, over-size BVDs? You simply don't draw the upper half. Do a number of sketches on a single page. Make it funny.
BTW: that's not my drawing above.
The BVD model changes and emerges wearing two pairs of puffy pants so they get really thick. The shirt, on the other hand, should be small and tight. Glasses and fake nose if possible?
The model should walk around in wide circles, presenting his back sometimes. On some excuse he should bend over and pick small things up.
Another costume change. High stepping walking models would be nice for this exercize.
Some people are really good at this.
I can think of some situational sketches using high leg walks. In one the girl does the funny walk into sc. and casually talks to her boyfriend, who's reading the paper. The doorbell rings and he gets up to answer it, doing an even broader funny walk of his own.
Or...a lonely, alienated young man walks thru a crowd of extras (the same two models do all the crowd poses after the major poses are done) and everyone in the crowd does the same funny low-kick walks. He's the only one doing high kick steps...he's just out of sync with the society he lives in. He thinks "If only I could meet a girl who was just like me." Well, he does meet her, and she's alienated from the crowd, too. She's a high kicker just like him, only...sadly...it doesn't work out. They can't abide by each other's hats.
Well, it was just an idea.
Try some back shots. See if you can do some acting with the back. Make it funny. Be ignorant. See Jim Carey's back poses in the Elvis post I put up recently.
Also try some low-rent, cheesy poses.
Make fun of classic art school posing.
If you do figure out a way to make this work, I recommend that the male model wear an old, thrift store suit. Suits wrinkle funny. Oh, and have a fan on all the time for the model's sake.