Cheaper NeoPixel Arcade Buttons

Remix of NeoPixel Arcade Buttons for the cheaper buttons with LED and screw-in mounting option.

I also recommend replacing the switches by clicky ones, like the Alps SKCM White, because the standard ones have a (nearly) linear feel (might be Alps SKCL Cream) which isn't really fun to press and feels a bit like the button is dead.

For cable channel end cap see 60x40 Kabelkanal-Endkappe.
For LED Beacon see WERMA MC35 UL Beacon + Buzzer 10-30V RGB M12.
For whole project documentation (in german) see 1D-Pong.