One of the advantages of a trampoline is you don't need an ice rink to work out on one. If you're a real die hard, you can get your own trampoline. Roller Blading is a popular cross training method a lot of figure skaters use. Although you can't practice figure skating moves, it's good for building up the same leg muscles you use in skating. It's also a good way to get out on a nice day instead of being stuck in a dingy old ice rink.
Crash pads are pads a skater sticks in their pants to cusion their falls.
Pads can give a skater more confidence to attempt difficult jumps because the falls won't be as hard. It's not as good as the jump harness, which should completely eliminate getting creamed, although it is better than nothing. I know of a couple companies that make crash pads and pants. Garde' is one you can get at Rainbow. Inside Edge advertises another brand.