Here are some alternate spin positions that I have observed in class:
Arms folded straight up at elbows, with hands held palm out and slightly cupped directly in front of shoulders.
Arms straight out to the sides, spinning as fast as possible: imagine Wolverine's adamantium claws slicing off heads as you spin.
Shoulders twisted, one arm up, one arm elbow out and down, hands in random claw-like position. A wild look in your eye helps this one.
Bride of Frankenstein
Arms held straight in front, with hands drooping
The Dead Fish
Arms out to sides, like the Wolverine, but hands flopping. For better effect, also bend your elbows slightly.
Oo oo call on me!
One arm over your head
Arms held very bent, with hands pressed fingers down directly against chest.
Please Jesus don't let me fall
Hands palm to palm
The Spear Thrower
One arm bent as though holding a javelin, other arm stretched out to side
I'll just wait here while you spin
Arms straight out from shoulders, but bent elbows hanging down (as though leaning against something about chest high)
Let's see how dizzy I can get
Head tipped back so you can watch the ceiling (alternate version: eyes closed)
I love myself the best
Arms wrapping as far around body as possible