Hames, have you considered making a cube, say 15"x16"18", that a student can rotate to the height that best suits them? These can be made rather inexpensively out of 1/2" plywood, finished in various ugly colors and hope they last a year or two before getting totally wrecked. The have the advangate of being adjustable, sturdy, difficult to steal, painted ugly to help prevent theft, inexpensive, rapidly fabricated, with no legs to break (or rails or stiles or corner brackets) when they lean against the walls on them. I got the idea from something similar being used by dancers. Newton
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