That's about right.
Nothing from nothing leaves nothing.
0+0=0
3-D print that head to fit on a no.2 yellow with a body for the other end.
Head could be eraser cap
Bode a sharpener/holder
3-D print that head to fit on a no.2 yellow with a body for the other end.
Head could be eraser cap
Bode a sharpener/holder