When makeup artist Terri Bryant developed Parkinson’s Disease, gestures that had long been second-nature to her—like swiping on flawless swooshes of eyeliner—became a struggle. So she sought to make applying makeup easier and more accessible for all. The Guide Wand, an eyeliner application tool, is a particularly stunning proof-of-concept. While standard liners take their gripping cues from writing or painting implements, the tapered handle and rounded grip on Bryant’s wand mean it can be grasped upright in a fist. That makes it easier for weak or shaking fingers to hold, and means a user can lean the wand against their cheek for support as they swipe hues across their eyelids.