My favorite Tankette, the Skoda S-1d. Built in Czechoslovakia for the Royal Yugoslav Army and used later by Romania. It only had a two man crew but it was armed with a version of the 47mm Skoda vz36 anti-tank gun, one of the most hard hitting of its day. It reminds me of a scaled down Hetzer. Not sure how they preformed in combat. I guess the commander was also the gunner, loader and machinegun operator which would have kept him very busy. I can imagine it would have been useful if used as an ambush weapon which could shoot then scoot. Generally though the Tankette theory was flawed and probably owed more to budget restrictions than military practicality.
I might try and use some spare parts to mock up one of these wee beasties.