One commenter suggested that the girls look like they're gliding on wheels hidden beneath their dresses. I thought of the mirror-topped music box I have. The figurines dance over the mirror, pulled by magnets underneath. This is so neat!
Aww, that's genius! Tally up another explanation as to how those girls are doing that. Wouldn't it be awful/fascinating to see a giant red air hockey hat-shaped banging thingie descend and whack at these girls?
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(My son said, "If you listen quietly, you can hear the hum of a giant air hockey table." LOL)
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