Like all edged tools, scissors go dull. Re-sharpening them requires tools and skill, and is probably beyond the capabilities of your average household user. Horl, the German company that makes the clever sharpening object we looked at here, aims to remedy that.

The company has designed their robust Horl Scissors to be easy to sharpen. Made of stainless steel, the two halves are bound by a quick-release spring mechanism that makes them easy to pop apart.

The odd-looking conical protrusions at the hinge points are purposefully shaped: When placed on a horizontal surface, the protrusion presents the blade at the perfect angle for sharpening, using one of the company's rolling sharpeners.

Furthermore, the company points out, the blades are ground to the same standard as high-quality kitchen knives. This is meant to be a forever object that you'll be able to keep forever sharp.