BrushBuddy

BrushBuddy is a tangible interface designed to support toothbrushing routines for children aged four to eight in the home bathroom. A 15 cm cube with a monster face, it responds to brushing through light, motion, and sound. Removing the toothbrush begins a two-minute session, guided by progressive tooth lighting and short sound cues. Motion sensing embedded in the toothbrush validates the routine, pausing progression when movement stops. Completed sessions accumulate toward a sticker reward dispensed by the cube. The project was developed as a five-day rapid prototyping sprint.