If you can put spoons, I don't think you can put cans either...xD But if they're like, campbells microwaveable soup cans, then yes. But hey, take the risk!
nope, unless you wanna like kill your annoying friend by saying look at it its magic and run away so when it blasts they will be unannoying
Put a crisp packet in, it's great. But no not metal cans :)
depends if's made out of metal, if it is, nope
If it's metal, then no.
Not if it's metal.
...Metal cans? No.
Not metal ones.
Thanks peps x