the 644th Ordnance Depot salvaged everything needed to make a “winter-proof” enclosure, a plastic top, windshield wipers, a spotlight and a windshield defroster.

I swear, a book of the ingenuity of the WW2 soldiers would sell really good... 

https://www.ewillys.com/2016/07/31/1945-photo-of-the-winter-proof-top-on-ebay