From the other side of the fence--the fundraisers I'd rather not deal with:
Magazine sales
Discount cards to local restaurants (I never manage to use them frequently enough)
But things I happily support:
Cutting lawns/raking leaves. A couple of the local kids groups provide the tools, then go around cutting yards and raking leaves and such, usually about $10 per yard, and the adults collect the money and it goes towards a trip.
Bake sales--check with your local farmer's market to see if you could setup there. Good captive audience, limited hours. Breakfast items go really well.
Recycling pickup. Not paper and such, but having the kids pick up the items you can turn in for money--aluminim cans, etc. It's not a huge amount, usually, but I happily give my aluminum cans to some one else, just so I don't have to drive them in.
Pampered Chef. Mostly just the smaller, easily carried items, but it's good kitchen stuff, and tends to make a ton of money. If you know a PC rep, sometimes they will donate their income from a party as well--I've done it for good causes. You need a large place to hold the party, but it can make a few thousand dollars in just one day in a big enough community.