Hmmm. I see what your wife means, that building needs a cupola with weather vane on top. :laughing:
Take a lobster eating trip to Wells, Maine and check out these:
Weathervanes, Cupolas, Finials, Copper Weathervane and Cupola Products from Weathervanes of Maine, Inc.
I used to live near the shop in Wells, very spendy but nice. Maine needs your money :laughing: He makes hand-hammered copper weather vane figures in halves, then solders them together.
Joking aside, the pics may give you some ideas if you do go shopping. Nice building!
Dave.