I haven't, but at most auto parts stores they sell a little kit specifically for head lights for like $30 that has a plastic buffing agent and I think a buffing pad for a drill. It's supposed to clear them up like new. I have no clue if they work for sure, but I'd be interested to know if you want to try it.
Other than that I like very few of the ones on ebay, just a set that's always on there for like $1100, and they're not even morrette's.
355 awhp fp green six speed wagon in Corvette Atomic Orange