While looking for some options for flexible chrome trim I ran across this
site. Flex Chrom is geared towards customizing hot-rods. I ordered the sample kit and was pleased by the selection. There is a wide variety - and all pieces adhere via VHB tape. Many profiles also bend in multiple ways, which can be tricky with molding.
Outwater also has some flexible metallic t-moldings, which are nice because you have a better anchor.