Photos of weather hoods?

[FCIN]

Here's a couple of web sites that should give you some ideas for several types of "dock seals":
http://www.bondorseals.com/cgi-bin/quiks..._All_Types
http://www.warehousetechnology.com/dockseals
You can also do a Google search for "dock seals" then select images and you'll get a lot of photos of these items.
Hope this helps. I know of no accurate models of these dock seals and have been tossing around ideas on how to model them to look "sort of" correct. Back in the day, people used to make passenger car diaphrams by folding paper and I'm thinking that something like that might work, using black construction paper. I just can't remember right now, how it was done!