Lego soap. These little block shaped mini soaps are enriched with olive oil, which makes this soap extra moisturizing. The perfect size for little hands. Via Etsy, you get 10 mini soaps and can choose between color sets!
The seller, CrazyKBathandBody, has over 350 scents and loads of other fun shapes! For only $4.50, this makes a great gift for party favors, small bday gifts, etc.