The IKEA (discontinued) Hemnes 2 door wardrobe doesn't have any knobs for the 2 doors, just the pictured key that will fall out if you try to use it as a handle.
I printed a prototype pictured here to test the dimensions. Then sent a 1 piece, prettied-up file to shapeways for a stainless steal print. I'll upload that once it gets shipped to me.
I expected that the Makerbot printed piece would have strength issues and it did break after turning it in the keyhole a couple of times.
UGH. I made a mistake on one of the measurements. Stay tuned for updated model.