Shaping necks, back of the headstock

I won't say I wouldn't want a gizmo for sanding it to thickness, but my Little Victor plane and the Mother of All Chisels does the trick quickly.

Since I use wooden violin pegs on my ukes I don't worry about the the sides being absolutely parallell - and I quite fancy the tapered headstocks on vintage ukes. On them the tip of the headstock is very thin.