Mixels

Mixels brought a playful cartoon aesthetic to LEGO with colorful, quirky creatures spanning multiple series releases during its mid-2010s run. Despite their modest original retail prices, standout sets like Burnard and Niksput have developed solid collector followings, with the theme earning strong investment appreciation forecasts. The bite-sized builds and distinctive character designs make Mixels an accessible entry point for investors seeking undervalued LEGO themes.