Personalized Geocacher Lost Mind Patterns Youth T-Shirt. I've lost my mind, but, that's OK. I've marked it with a waypoint. Uh-oh, low battery! with geocacher in patterned text against a patterned background is a funny gift design for those who have lost their mind over the outdoor activity of geocaching Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.