I run http://www.bottlesofhope.com.au
and we run numerous fundrasiers to raise money for the program.
One of our best fundraisers was a "Christmas in July" morning tea, it might be too soon for you to organize something like that though.
We charged a entry fee of $10 and served morning tea, morning tea was made up of donated plates of food. Basically 10-12 people all donated a plate of food (As well as paying the $10 entry fee)
For the $10 that also got a raffle tickets, the prizes were also donated and were from large to small items. (everyone usually has something in their closet they can re-gift)
There was also the option of buying extra raffle tickets.
We also had some games such as "throw a gold coin at a bottle"
obviously in US you don't have $1 or $2 coins but a similar principle could apply.
Who ever got the coin closest to the bottle of whiskey (etc) on the floor WON it. Of course the whiskey was donated meaning even if only 10 people played it was worth it.
There was as always a craft stall where all funds raised went to the cause. WE had items from $1 -$30 and again it was all donated stuff.
I hope this has given you some ideas.