Cubicle hook for ellipsed-top wall

Late last year my small company moved into a new office. As part of it, we inherited the cubicle farm that was already there. I have no idea of the brand, but the tops were highly elliptical, rendering most of our existing top-mounted wall hooks useless. I searched Thingiverse for compatible designs, but I couldn't find anyone else using one with these particular dimensions. Fortunately, I had taken home a piece of the cube top shortly after move in and used it to design my own hook. Postin