First off, I want to say thank you for the very cool raffle prizes. I am enjoying all of the critters I have won.
That having been said, Here are a few ideas that could possibly be worthwhile.
1. More fish. (Reef safe and invert safe only! And hopefully, peaceful community fish. I love my Fairy Wrasse from last months rafflle.)
2. More cleaner packs. (Not just snails, but also emerald crabs, cucumbers and brittle stars/serpent stars etc...)
3. Soft corals (Sinularia, Sarcophyton, etc... Nothing non-photosynthetic)
4. Test Kits (API are what most of us use, so anything better would be a great learning tool. Besides, $30 kits are out of my price range, but I would love to win some.)
5. The feeding tongs with the clipper attatchment or the "really long turkey baster feeding tool". (I will try to look up the name of the company that makes both of them.)(Seachem?)
6. A refractometer. (Just a cool prize. Maybe do it as an either/or prize with a really nice coral.)
7. Phos reactor witrh pump and media. (Very good idea, Marko9.)
8. Small dollar amount gift certificates. ($10-$25 plus. additives and food are very personal purchases and would be better left to the reefer to pick out what they want. Besides, a $20 gift certificate means someone will buy more than $20 of stuff usually and thus an extra sale for the stores we are trying to support! Win-win situation.)
9. Small light fixtures. ("under $40 fixtures" for: refugiums or pico reefs. Coralife makes some nice ones.)
10. Powerheads. (Everybody wants more flow in their tank.)