Armadillo Idea Drawing

Now I have made a prototype I think this is the best way to go with it.

My thoughts for the tail would be possibly one of these. They only bend in one direction so if there was a way of getting it to twist when the armadillo folds up and stays flat when it is just walking along.

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This is what I thought for the legs, just create a shape from clay or wood.

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The connectors for the wheel would connect like this kids toy. Slot together but with a wheel.