Peter Durand's Tin Can

Origin
Peter Durand was the first chap to store food, raw and half-cooked, in tin cans. King George III granted him a patent for the container in 1810, but most of the actual description tells of the preservation method. The open container was meant to be boiled or someway heated while uncapped, then sealed to maintain freshness.

Effects
Tapping will cause any free-standing object to be sucked up into the can. Compressing space for a mousetrap or a flagpole will see the center bulge outwards then return to normal shape after adjusted. To retrieve one’s items, just puncture. The stretching of the can’s structure however does excite the outermost layer of metal, making it steam for several minutes and sear any poor sap who grabs it.