Logitech please please start selling replacement shells for the 3S

Bought a white refurb 3S several months ago and it's been a great mouse so far. However the rubberized finish means it stains really easily and is impossible to remove (I first accidentally got stains on it after peeling oranges) and now it looks awful.

It's very difficult to get hold of a replacement shell for the 3S (and non-S shells aren't compatible because the switches use a different spring), is Logitech intending to sell those as a replacement part anytime soon?