We have something similar in form to plnyyanks' too.
Switches on the left, Joysticks on the right, laptop in the middle. The main body is diamond plate, which I admit could be replaced by a lighter alternative. It holds up well for our various demos though, many of which involve driving the bot while carrying the board, so the folding solutions are a bit more complex. We are lucky enough to have a laser cutter available, so we take plexiglass, burn off some paint to make the pattern, and then cut out holes for the switches, as well as for the cables to run through. Also comes with red lights on the inside for extra effect.
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