My favorite Batmobile of all time is from Tim Burton's 1989 film Batman. The folks at Think Geek used digital files from the Warner Bros.' archive to create an accurate two inch steel-alloy replica of the Anton Furst design. At only $10, this might be a fun gift to buy for yourself (or other people).
As a kid, I had a die-cast version that was the same size. I took it everywhere, until I lost it. Thankfully I had a second one...which I also lost. As an adult, I now have much a much larger one, which I don't plan to lose anytime soon.