Quad Stim Pad 6 included texture plates.

Utilizes 10x2mm magnets (you'll need 10 for 6 pads and a base). https://www.amazon.com/dp/B0C6GKDDLX?ref=ppx_yo2ov_dt_b_fed_asin_title (not an affiliate link, just what I bought)

No support necessary, the magnet holes will possibly say they require it, but they don't.

Must have commercial licensing to sell the printed files!