Best Tools for a Young Team Control Panel?

[An Outlier]

Thanks for your answers, everyone!
At least to start, looks like I will try the TI Launchpad.

My next question then:
What input methods do you suggest?

jmullins16 mentioned the Arcade Button from sparkfun, which looks reliable and simple.

For the dial, 3D printing a knob for a potentiometer looks to be a good solution,
how about toggle switches and/or sliders and the like?
Sparkfun seems to have many of these options, so any experience of the best(most reliable/useful) would be great!