Beware! Lest we inadvertently bring Gymkata into the Dresdenverse.
Pshh I can do worse than that picture this:
enchanted item laser ice skates used to skate around on even concrete/asphalt, using triple axels to attack foes.
I can't decide if the stunt should make athletics into fists or if it should be performance.
Also see Breakdance fighting performance -> fists stunt.
Best idea so far from my group, a chronomancer enchanted axe or shield that sends matter it strikes into the immediate future. so 5 minutes from now whatever hit it winks into existence without warning. We thought about making it send stuff to the past but there'd be no way for me to gm that correctly.