Oh god - so many things. So very many.
Beautiful, dainty, elegant flat shoes that have a thickish, but not obvious sole, so I can actually walk a long way in them. Not ballerinas; shoes that cover more of the foot, or have a little strap. And in contrast to lots of other posters, I want them pointed. Pointed every time.
Jeans that aren't bloody blue. I want khaki jeans, brown jeans, green jeans.
A bikini that fits, and isn't itsy-bitsy teeny. A modest, 60s-style one. I haven't been able to find a bikini I like for over ten years. Ten years without a bikini!
Tankinis that actually fit.
Accurate reproductions of vintage clothes and accessories of all types. I desperately want a green 1950s suit and some 1920s summer dresses, and 1920s coats.
Lovely comfortable tunic tops in reproduction vintage fabrics, ie, modern in style but with vintage prints. I would sell my soul for a source of those.