We've been "simulating the continous dropping of jewellery onto a hard stone floor", but maybe got a bit over-zealous with the amount of force applied as we've managed to bend a few, as seen on the photo on the right. They're made of surgical steel, which is a bit of a git to bend at the best of time, so this bending was quite impressive, as was the toughness of the fronts \o/
We were so heavy-handed that one of them even snapped at the base and can't be used for testing anymore (the fronts are fine, mind, just a bit tatty round the edges from being beaten into submission).
Farewell, test Ice Planet of Hoth faux plug, we'll miss ya, little fella.
