check out our Synth Dust Covers here
Custom MIDI Controllers in a variety of combinations:
1/2/3 Sliders, 6 Sliders with 2 Knobs, 8 Knobs.
All with LED Display, programmable CCs, Channel, Range (Hi/Low) and 5 Presets.
On my YouTube channel you can see a few of these in action:
And here's an example: