I was fundraising chair for team for 4 years. What a job! I also wasn't working full time, so I did most of the stuff that the coach needed that he couldn't take care of being in teh classroom everyday. Selling candy at school (allowed only for fundraisers for the teams) was a money maker. Be careful though, some schools require that you go through vendor only.
Some good ideas here, but the BEST for us were teh one that cost nothing, car washes, spaghetti, chili dinners. We did candy and sold banners and the plastic cards. THE best, was that we pumped up our list of goodies in concession. Grilled hamburgers and hot dogs, made FF, pizza, nachos, soft pretzels, candy, popcorn. People are hungry when they come to a game and when they smell that stuff, they'll eat it, ALL. So as word spread we had the best concession in town, they came with appetites. The more we provided the more they ate. Pizza can be delivered from dominoes, buy one pie from them and get one free (we made arrangements in advance with one store), don't bother with the frozen pizza. We also ran pre season tournies. The scouts were our best customers. The last year I was there, we dropped some other fundraising things and made most of teh money needed off of our concession. We made a deal with our shirt guy, who through in a few dozen shirts for free and they sold like hotcakes. We got 25 a shirt, and they gladly paid as they knew it was a fundraiser. Also, don't forget 50/50 raffle. We'd make about 50 a game sometimes after split.
BTW, contact Otis Spunkmeier, they have fund raising ideas. I think that you can rent the cookie baker for free and then you just buy the frozen dough.
I do beleive that most coaches KNOW they need help when raising money and they know that moms know how to do it.