You can get several designs of cargo containers for Infinity — or for any science fiction game, for that matter — at this Spanish site.
paper models
Free Zeppelin Card Models
Here are a couple of free Zeppelin card models. I’m sure you can find a use for them.
Golden Age Super Heroes In Paper
For an unusual game, you might try these paper models of Golden Age Superheroes.
Christmas War Paper Models
One Monk offers a selection of Christmas Wars paper figures. There are polar bears, Krampus and Velociraptors in Santa Hats in Scarves.
I have no idea what you would use these for. But they’re cool.
Elder Thing and Investigators Paper Figures
For Cthulhu fans, here are some paper figures of an Elder Thing and Investigators.