FP2 - SLIM CASE, Turquoise, Never used.
5€ + the shipping costs (shipping to EU only)
(I just recycled my old FP2, because I got the FP4)
If interested also, for free: old camera module, and used additionnal battery (belgium only)
NB: If you are interested and want to send a direct message, please check #how-to-dm.
Be aware, that cross-border shipment of batteries outside a phone is virtually impossible for individuals.