Darth Venal said:
The great Flipper debate?

Enlighten me!

The "Great Flipper Debate" was an argument (that I, sadly, missed out on being a part of) during the production of ANH:R about whether the severed arm in the cantina should be a flipper (since the alien's hand, as seen earlier in the scene, was a "flipper") or a human hand (since Dr. Evazan was the one holding the gun, not the alien) - either way, the original element of the fuzzy hand had to go since there was no one in the scene with a hand like that.

The DVD-5 of Revisited has a flipper, but the DVD-9 has a human hand (which is, actually, Adywan's own hand).

That's about all I know - I wasn't part of the actual debate, as I said, but I think I got the gist of the argument.