Thanks for responding and picking them up so quickly, rwp1202!
I picked up an Instant Ocean SeaClone skimmer at a local fish club auction last week for $5. I think it is new, but the seller took it all apart, even the powerhead, closed up the empty box, set it in a larger box, and scattered the parts on top of the empty box - as if you were getting two skimmers.
I think he shot himself in the foot, because no one would bid on this, and I think maybe some of his other similarly deceptive auction packages. I finally bid $5 to keep the auction going. I reassembled it, and the only missing part was the foam prefilter. It is rated for up to a 70 gallon tank. If anyone has a use for a small "antiquated" skimmer, it's yours for $5.