Industrial designers Alan Harrison and Ben Millett, along with logistics manager Michael Culleton, comprise a Dublin-based product brand called Stayhold. Their eponymous product, which we looked at here, is nuts-and-bolts ID: Just a simple object for preventing cargo from sliding around in your trunk.
Stayhold is now expanding their offerings into wall hooks. The trio studied hundreds of objects and concluded that if you wanted to hang all of them from a wall, you'd need five different shapes of hook.
Here's what they came up with:
They opted to launch the line, which they're calling Superhooks, through Kickstarter (it was successfully crowdfunded). In the intro video below, you can see the hooks are all 3D printed; I imagine they'll eventually be injection molded, and that the campaign was to gauge interest.
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In any case, if you're an aspiring design entrepreneur with a 3D printer, projects like this seem like a good way to dip your toe in the pool. (Or if you want to start smaller, 3D-printed hooks are a thing on Etsy.)