Perfect Redneck Camping Margarita Blender

I've always been fond of margaritas when camping. They go perfectly with my dutch oven chile rellenos, homemade quacamole and lime tortilla chips, and the southwest black bean and corn cilantro salad I make. My "river ritas' are well known amongst my Idaho river running friends and backcountry yurt ski trips. But I've found the perfect addition if only I had a chain saw that worked--on the first pull. So enjoy. If anyone out there knows how to make one of these, I'm in!