Carwashes bring in the most money as far as small fundraisers go. It is getting a bit late in the season to be having one though, so you had better hurry up
Try asking your school if you can sell refreshments at sporting events. I'm sure this brings in loads of money (especially if you get the stuff donated or made). I'm not too into sports (haha...) but I think basketball, football, soccer, cross country, and maybe wrestling is before the deadline. It should add up over time.
Go beg to local places. This is what our team does. Our biggest sponsor is less than $4,000. Ask schools for money. Ask local (read: not huge chain) stores for money... Ask factories. Ask electric companies/cooperatives. Just bug the heck out of the community
You're sure to get a few thousand dollars worth of pity money.
And presentations really count. Bring an adult
(I doubt many companies will give checks to kids)
Sell candybars in your school Sell hoagies. Sell dohnuts. Have a collective yardsale
(They work!) Have a bingo night (we're working on doing this). Five bucks a card...10 games or whatever...split your money in half and give out one half worth of prize money (assuming it will be greater than $5
)
Go to local fairs and happenings. Make a donation box. You wouldn't believe how well this works. All profit...well...besides the box
And lastly,
DONT SELL FREEZY POPS! Argh. Because sell is one thing they don't do.