Vintage Vinyl Records: Vinyl records are regaining popularity among collectors and music fans.
Comic Books: Don't throw out those old comic books you enjoyed as a kid. Editions and issues with initial superhero appearances have appreciated in value.
Antique toys: from action figures to model automobiles, are nostalgic for collectors.
Vintage Video Games: An 80s or 90s video game collection may be worth a fortune.
Postage Stamps: Philately—collecting postage stamps—has been a popular hobby for decades. Rare or printing fault stamps can be worth a fortune, but most won't.
Vintage Jewelry: Family heirlooms and thrift shop finds may be worth more than you think.
Sports Memorabilia: True sports fans collect it. Signed jerseys, game-used equipment, and trading cards of famous sportsmen are priceless.
Vintage Cameras: Vintage cameras, especially analog ones, are beloved by photographers and collectors.