I designed a tape measure holder. The tape measure can be inserted in both directions. There are slots for the little Metal thingy. The Hole is 26mm wide, 62.5mm long and 16.5mm deep. The Slots are 1mm thick and 4mm deep. So you can just measure your tape measure and see if it fits. It's specifically designed for my stabila one with a millimeter of play on the short side and half a millimeter of play on the long side.

Hope you enjoy my idea..