This is a speaker stand I designed for the Wavemaster Cube speaker(https://wavemaster.com/produkt/cube-neo-black). It can be mounted on a 30mm (outer diameter) pipe. I used a clamp to connect the pipe to my table.

It has some cable management on the bottom aswell.

Assembly advice: Just glue the connector pieces in the gaps and then glue the bottom and top part together. it might be necessary to sand the connectors down a bit. When the glue is dried you can push the pipe into the stand. Some force might be needed, so maybe use a hammer.