The Punk Workshop Leverless U provides a plethora of features, such as slimness, many layouts, different colors, and custom art.
The SGF Faust is a mini stickless controller with LED plus a TRS jack for external input sources like foot pedals.
The Glyph is a modular all-button controller that is available in layouts for games from Smash to Street Fighter.
The Neobox Core0 is a slim acrylic all-button controller that is here in order to serve your need for RGB LEDs.
The G series of Haute42 controllers can come in 16, 13, or 12 button editions in order to cater to your needs.
Donte Wilson is your guy if you are looking for stickless wooden controllers that have stylish button LED.
The MakeStick Pro Crystal Edition is a transparent custom case that can also be colored, and custom art is an option as well.
The RaidenBox is a mini all-button controller that is made of acrylic & nylon and is inspired by the Flatbox & Snack Box Micro.