They should give us a item slot: Utility item/belt.
They could come in a couple cosmetic varieties to help add flavor. Differing grappling hooks, boomerangs, a jedi-like force pull/blast.
They could serve 2 purposes. The utility ability would be able to grab coins and hearts. Possibly even grab walls and pull u to them quicker than you can run!!! And there would be mobs that changed functions when hit with utility weapon. Winged mobs that fail to the ground. Imagine hitting a silkwing type healer and it falls to the ground and turns into a DPS mob. Imagine grappling the water pedestal (not the water) to yank yourself out of the way of a slag rush. Anyhow, it regardless of how it was done specifically, i would AT LEAST think it would be valuable way to grab hearts/coins, but could also be a great way to freshen up gameplay and add flavor.
That would be fun, but I can't say too much since your thread isn't that specific. You might not want to call it a utility belt though, becuase that's the name for the four vial cases up at the top of the screen I think.