Little boys will love the idea of working like daddy in the garage and everyone will appreciate the fine motor workout you can get from matching nuts and bolts. This idea (and several more in the same post) from Counting Coconuts.
Pinner wrote "Spider man and captain America in our block area! Couldn't afford more small world things/action figures so made these instead. Hoping the boys will play small world Spider-Man instead of role play spider man!