there is a product you can buy to weatherize your windows for winter that you staple up and then heat with a hair dryer to make it tight. I've used this on stage sets before to look like glass and it works really well and is pretty cheap. it's also nice that it comes in big sheets, which, judging by the photos, you'll need.
here is a link to one I found online, but there are lots of other manufacturers and you can get it at Home Depot or Lowes easy.
Frost King Outdoor Window Insulation Kit : V96H - Buy.com
Hope this helps!
here is a link to one I found online, but there are lots of other manufacturers and you can get it at Home Depot or Lowes easy.
Frost King Outdoor Window Insulation Kit : V96H - Buy.com
Hope this helps!