With these models and using standard broomsticks and wooden board you can create 3 legged stand for your needs.

Found cheap 23mm (15/16in) broomsticks locally and decided to make speaker stands. I did quickly modify the models to have 28mm (1 1/8in) compatible versions also.

I'm sure someone has made similar stand earlier, but I could not find one with search, so here is my own.

Assembly order:

Attach legs to the MAIN BODY

Attach MAIN BODY to the board

Attach SUPPORT to the legs

edit:

Added a cap for feet if you want one, have not tested it yet myself