Building 'blocks' using canned foods

Building blocks with stuff from home. Our household has a few canned food such as baked beans,  tuna,  tomatoes, etc. Luke prefers playing with these canned food over the wooden blocks. Perhaps these cans are different in sizes, shapes and weight. He fiddles with them, rolls them around and sometimes drops them to hear the sounds it makes. Thought this is a quick way to keeps young ones entertained for a while and also introducing them to different attributes of the objects.  What items do you use for building blocks other than wooden ones?