As if building a model isn't difficult enough, this fellow builds them in bottles!
http://www.lib.aero/~ari/aibs/construction/ (http://www.lib.aero/~ari/aibs/construction/)
(http://www.lib.aero/~ari/aibs/fokker-dri-top.jpg)
Nice project. A solid model could be assembled in a bottle. For me it would need to be a mason jar. I tried to track down the author, but could only find trace of him up to 2012. Thank for the link Garet.
Lou