Sword holder practice...thing?

Relatively new, so i apologize if this is ignorant. I saw a guy in a video some time ago who was showing some parries or something and he had some sort of stand which he mounted a sword to, to act as his opponent when showing the techniques. I asked in the comments about it but never heard back. Does anyone know of such a tool? Google is failing me and I suspect this is likely not it's intended purpose. It seems like fun and I can only make it to the club once a week and figured if I could find one it would be more fun to practive against than the tennis ball hanging from my ceiling. TIA