Unveiling the World's Most Valuable Collectors' Items

10. American Girl Doll – Felicity Merriman (Original Price: $82* Worth Today: $6,000-$9,000*)

Felicity Merriman, also known as Lissie, is a beloved character in the American Girl Doll series. Described as "tomboyish" and "adventurous," she made her debut in 1991, with a doll and accompanying literature. After fourteen years, she received a makeover and was re-released in 2017, despite being archived in 2011.

If you happen to own a valuable Felicity doll, especially one from the original 1991 release, you could be sitting on a goldmine. PBA Galleries values these iconic dolls at a whopping $6,000 to $9,000. So, if you're lucky enough to have Felicity hiding somewhere in your house, you might just find yourself with a pretty penny in your pocket.