I assume that's an X-Arcade stick?
You'd probably be surprised at how little is needed to keep the controller in place. I mounted my tank stick to a pedestal using nothing but the stick's own gravity and some holes. On the top of the pedestal, there is a board that sits underneath the X-Arcade with 8 holes drilled into it just large enough for the X-Arcade's rubber feet. When you place the controller on top, the feet fall into the holes and the box appears to sit directly on the mounting surface. I wanted it to be easy to just pick up and take the controller from the pedestal whenever I want, and it has worked like a charm for 3 years and counting. No velcro, no fasteners, etc. It doesn't move around one iota, even with 2 full grown men playing Street Fighter 2.