Maker: Bluebird Toys
Original Price: $9.99*
Worth Today: $5,000*

Polly Pocket toys were a series of dolls made by Bluebird. Though Mattel took over Bluebird and briefly discontinued the Polly Pocket lineup, the dolls still hold a warm place in peoples’ hearts even as time has passed. The most valuable vintage Polly Pockets were released in a nine-year period, from 1989 to 1998.

The Polly Pocket Partytime Stampers, released in 1992, are among the most valuable, and they can sell for up to $5,000 on the market. The pink, heart-shaped compact had two levels when you opened it: a bedroom and house with a gift and a garden with a party table set.