Legion Go - 3D-printed accessories or add-ons

As a 3D-printer enthusiast who hopes to snag a Legion Go early next year... I wanted to ask you, the community, if anyone has experience printing or buying 3D-printed accessories to customize or improve the experience with their Legion Go? What kind of accessories do you have experience with and could recommend to enhance my experience with once I get my Legion Go? (Grips, backplates, stands, docks, D-pad or joystick covers, etc) Let me know, thanks!