Cup-Hooks

I searched a way to save some space inside my kitchen-locker. There are allmost a lot of cups inside, but half the space obove is'nt used reasonable.
With these hooks, which are fixed upside-down underneath the shelfboard, you can hang three additional cups above the others. Print as much as you need to hang more.
For design-changes, I attach the original FreeCAD-File. Have fun.