When I was 14 my buddy and I would pick up random speakers from road-side junk and wire them up to a 30w Gorrilla and record ourselves blowing them up, slashing the cones, throwing rocks at them until they gave up the ghost.
Good times!
I've still got the tapes somewhere.....
To this day I have a deliberately slashed 12" Celestion that I've kept loaded in on of my 4x12's, sounds great for certain things.
It got wrecked at a backyard New Year's party - the band was closing with "My Generation", I'd consumed 2 bottles of Baileys plus beers and wine and sent the headstock of my Strat straight into the cone.
The host of the party stopped me mid-swing as I was using one of the cymbals to smash the neck of my Strat - thank god he stopped me coz I was hell-bent on destruction!