Elpenor
a clown’s heart and a mandolin
Bloke at uni used a discarded beer can in someone’s room, it was only later that it was realised that the beer can also had a used condom inAnd for adults, making a hash pipe out of a carrot/spud/tin can. See also homemade bongs, buckets and being able to delicately ping the side of a milk bottle at the bottom so you could make a solo hot knife bottle