Allright. Here are a few designs I've come up with. The goal is to give them a vintage look.
First, here is a stock MR2 bucket. A little too modern and 80s looking, in my opinion. I currently use them as work seats in the garage and I've noticed that they are very comfortable. The driver seat has adjustable lumbar, adjustable side bolsters, adjustable front seat height, and an adjustable headrest. I don't remember if the passennger seat has all of that adjustability as well but it has at least some of it - it's buried under a lot of other stuff now. Plus, concerning the passenger, they are designed so that not only scrawny people like myself can be comfortable, unlike many of the aftermarket seats I've been looking at, and can be adjusted to fit.

And here are the ideas.
A

B

C

So, what do y'all think? I like the last. I think it takes the vintage look and adds something extra. A friend has referred to it as the Spiderman seat. I have some blanks I can e-mail if anyone wants to suggest a design. I'll probably go with a combination of black vinyl, black cloth, and red stitching - if I can afford it now.
Lawrenceville, GA