Corky's still in the Monkey Bar drinking shots, you may have trouble getting him away from there to service your geese! 
Spanky,

I know it has to be done, but the Japanese have a word called Wabi Sabi which means the beauty of something that has endured time which has left it's own appeal. But I am envisioning them as all silver with an art decor type decal on the nose of say, a flying lady holding a torch to reflect that romantic bygone era. When I was walking down his driveway back to the car, the wind made the props turn on one as if to say, I can still fly. And YES I fully admit to holding one out the window on the drive back home to see both props humming away majestically.
Very nice!
You're a lucky guy to have two of those beauties!
Traveler, And don't I know it. The guy lives less then an hour away round trip and had them on ebay with a starting bid of $5.00 FOR BOTH

I emailed him, and in true pulp style offered him a deal he couldn't refuse and by the time he pulled the listing he already had one bid. Whether I could have got them for less bidding on them then what I offered, we will never know.
I'm sure that I have seen these for sale in TKMAX, UK discount store.Tony
Dampf, My advice would be to GRAB THEM if there still there. The circa is around 1999 from what I've found researching them.