What are some good refreshments to sell at a place like a park?

Calista: What are some good refreshments to sell at a place like a park?
Me and my friends are raising some money for a concert. We want to sell some things at the neighborhood park. We thought about selling ice cream but the weather would need to be hot for that. So any ideas for things that could be sold in any weather?

Answers and Views:

Answer by Octo
Water.

Answer by bbkuri
how about lemonade..hot dogs…

Answer by General Custer
Sodas, water, candy bars, dried fruit, anything you can run with when the Man comes to say you don’t have a permit.