3D printed controllers can be quite charming, and 3D printing controllers often correlates with these controllers being made out of plastic.
The Modernbox is an ergonomic controller with a custom layout optimized for Street Fighter 6 modern controls, and it can come with a joystick.
To Live Is to Play is a store that sells this slim arcade stick compatible with Sanwa JLF PCB switches, including an adjustable shaft height.
The Furaipan by Akekon Dojo is essentially a frying pan with Sanwa buttons. Other options include a Sanwa lever edition.
Given the sweltering success of the PadBox GS, Arkodd released the Platform Edition: half a rectangle with a D-pad and analog stick.
Instead of the usual LEDs glowing around buttons, the LP-01's lights glow through strips on its top, side, front, and back panels.
The Huntsman is a batarang-shaped leverless controller with 12 main buttons—as well as two Hall effect analog sticks.
Consider the Yume Tanuki if you'd like a small leverless controller that still has some decent height to it.
You should be able to order Akekon Dojo's Shinpuri regular or large case option with 24 or 30 mm buttons, depending on your hand size.