These dolls and figures are from the Danbury Mint (they also make plates.)
I'd like to add a link to their site, but they only have one for sports memorabilia at this time. They can be reached by phone at1-800-426-0373 M-F 9 to 5 EST, or by mail at 47 Richards Ave, Norwalk, Connecticut 06857.
An assortment of plastic Betty Boop Dolls are made by Precious Kids, and can be found at most Betty Boop retailers,
along with separate outfits and accessories.