I have no prone Prussians except some casualties. The latter will need some work to put them into a useful position. I would like some Prone FPW as with TDFG boths sides spend a lot of time prone!
If Foundry did produce prone figures it may be worth a call. I got some French mounted staff officers, no longer listed but during a phone call to the helpful "Bernard" he said there were some figures not listed that are still available.