Super Soaker
This iconic water gun hit the toy marker in 1989 after it was created by Lonnie Johnson. The Super Soaker had more power, range, and accuracy than conventional squirt pistols, leading to its widespread popularity. A vintage original goes for $1,000.
Playmobil
Playmobil sets were essentially mini-movie sets. Each set featured a human figure with a unique smiling face called a "klicky." Kids could collect various accessories, including buildings, animals, and vehicles, to build their ideal world. Today, a Playmobil set sells for roughly $800.