Attractive locking gas cap? Show us your gas caps! No rags!

[davepl]

I have my original factory cap and I polished it to a high lustre; I'm kind of worried someone will take off with it at some point. I wouldn't care -that- much but since it's my original, I either need to put a replacement on or a locking cap.

It'd be sad to have a cheap repop on there with my nice one hidden away, so if I'm going to do that I'd at least like to have a reason, and I figure a locking cap is a good idea.

The ones I've seen though are all short with square shoulders. Does anyone make anything that looks at all like our originals, but with a key?

Or anything attractive that suits a truck like this? Or should I find another original, polish it up too, and take my chances with the replacement?