Gauntlets, Adamantine-toed Boots
Nothing says badass like being able to punch or kick through walls.
Our group bought a couple of adamantine pickaxes from a mining community we used as a base of operations.
I poked a hole in a wall with an adamantine rapier after an acid spell failed to melt all the way through. We were trying to reach an opponent that walled himself in with a single party member. Unfortunately for him, he was walled in with the tank/hitter, who could cast silence, and the enemy was an arcane caster.
Climbing claws, bites into anything, very ninja-esque
The wire saw is a good idea, I think the next time I play a character that carries lockpicks, the kit is going to have an adamantine wiresaw added in, possibly hidden on my person somewhere. Dunno if I'd want to try using it as a garrote though...umm, ouch.
Oh, also, powdered adamantine made into a grinding wheel, for sharpening other things. (don't ask how it got powdered, there's magic in the world.

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mail gloves, like the kind they use for protecting the hand while cutting things, filleting fish, etc.