Jersey? Maybe off the ramp at the top of the triple chair at the Hidden Valley ski resort? Not a skate park, but lots of winter leaning skate-rat snow boarder types seem to get a kick out of the place....as do the rest of us
Without any undue disrespect, I could also feed the ashes to one of my guinea hens, then use their "movements" to fertilize a King Crimson Maple (or what ever species you desire) sapling which in 20 or 30 years would stand as a moving tribute to skate punks everywhere?
Just throwing out what I've got to offer, and I'd be happy to oblige.
-bear