What would make it perfect is a trap door or sliding bottom for easy emptying- An awesome DIY bottle opener, perfect for outdoor parties. It even collects the bottle caps. Ideal Father's Day gift or project to make with Dad.
This would be cook for crayfish boil! I think anything with built in cooler space is probably a good idea for summer. Kids wagon, outside seating, or this: DIY Patio Table With Built-In Beer/Wine Coolers.