Does anyone know where to rent an ice cream cart?

By lrmrgrt I am trying to gather props for an upcoming photo shoot and need to rent an ice cream cart... i'm looking for something that has a hinged or sliding lid on the top, is about waist high, and preferably has an awning or umbrella. I am in Austin, Texas and have checked with a local ice cream store, but i thought some DIY experts may have some ideas after all the hours of scavanging and hunting for treasure. Any thoughts?