A new Ukrainian company, Proper Plane have been developing new, real wood laminated propellers for your 1;32 WW1 models. The first two have now been released and can be seen HERE.
I was fortunate enough to have a nice chat over a coffee with the owner, Alex, whilst I was in Kiev back in September. He's an avid and rather brilliant modeller who wants to give something back to the modelling community with these new products. The first two propellers are for use with German subjects, but I'm sure there will be more to come in the future.
I'd like to wish Alex all the best for his company and the wonderful products.