Having been involved in many fundraising efforts over the years, here are a few suggestions:
1. Ask. Don't be bashful or timid about asking for donations. If you are providing a worthwhile service (which you are!), it is perfectly reasonable to ask people to support it. People respect legitimate requests for donations.
2. Briefly explain what you are trying to accomplish with the fund raiser. Nothing too elaborate. Just saying something like "To help defer our annual operating expenses of $xxxx, etc." is plenty.
3. Stay away from gimmicks. I've found every fundraiser I was involved with that got into prizes, or gifts, or 'special thank-yous' wound up turning off a lot of the people we were trying to get to contribute.
4. By the same token, don't underestimate the importance of people feeling the need to belong to something worthwhile. Being able to call yourself " a member" packs a lot of punch for many people. A simple token or badge a contributor can somehow display is usually all the thanks they expect or want. I think Darwin had a good idea above - maybe even some sort of 'merit badge' type thing where each contributed year had it's own badge that got displayed.
5. Do your fundraiser once - or at the most, twice per year. Don't do the PBS/NPR mini-drive thing. It just gets people pissed off.
6. In the USA, the best times (so I've been told by the pros) are the spring (US Tax Refund Season!!!) and right around Thanksgiving when people are feeling generous but haven't gone completely broke buying Christmas/Hanukkah/Kwanzaa/Yule/Durin's Day presents yet.
7. The thermometer idea is great. Always let the people who contributed know how it is going. It builds involvement.
8. Lastly, whatever you do, see if you can find a way to give Curt that third gold box he wants so badly?
