Feet are one of the most common ways to make arcade sticks more stable on a desk, and oftentimes, these feet are made of rubber.
The Excellence controller comes in a whopping 20 variations! As the great George Bruno once said, "Pursue excellence, and excellence will pursue you."
The SYGBox by SaveYourGames is a 3D printed controller that lets you choose button and cable colors as well as the PCB.
Retro Stockpile offers enclosures in the leverless & fightstick formats that can also come preassembled with buttons and other parts.
The X8 is PXN's debut WASD-style controller that sports some interesting artwork which is refreshing to see.
The Zero Two is a modular controller that can be ordered in lever or leverless format—as well as preassembled or DIY form.
The Zero One is available in multiple layouts and colors—plus preassembled or DIY formats—and an overall modular design.
In addition to a Sanwa joystick, you can order the Joytron EX Revolution with a Crown lever variant of your choice.
The Taito Egret II Mini Control Panel can be used with the Egret II Mini arcade cabinet or as a PC arcade stick (with the proper drivers).