Woot is currently having a sale on Vortex Portable Mixers. These are basically an 18oz battery powered portable blender. For $14.99 you get two of them (the other two places I saw online sell one for $14.99). Seems like there would be a ton of uses for this tailgating. Either in the frozen drink realm or for mixing ingredients for on site cooking.
If you’re not familiar with Woot, they offer items on sale for only one day or until they sell out. After the day is up, you can’t get them from their site anymore. They also don’t take returns. It’s a quick transaction but they usually offer pretty big discounts. I’ve bought a few items and never had a problem.
For more information on the mixers themselves check out the Vortex site.