Created using some 3D printed adapters, Tasmanian Oak, and glass.

I've used some 9.5mm Tasmanian Oak, with 10.5mm holes as I'm not using support material. You might find that you can use 10mm dowel, or scale the model down. It has been designed for use with 4mm glass, I used a glass Expedit insert from Ikea.
Needs to be glued to make it stable. Try installing the top adapters first, so that the glass sits flat on the top.

A 3 legged design would be more stable.