If you grew up in the 1980s or '90s, it's very likely that you came of age with Lisa Frank-branded school supplies, party favors, stickers, beach towels, and all manner of rainbow-splashed products.

If you were a sticker lover, a colorful stationary connoisseur, or passionate about rainbows in the 1990s, chances are you were obsessed with Lisa Frank. The brand's bright designs, plastered on ...