Stuck in sippy cup limbo? Too small for real glasses but too big for plastic cups? Meet the EIO Kids Cup. The silicone-lined glass jar features a valve-free, spout-free screw-on top that miraculously prevents spills while nudging munchkins into big-kid cups. Twist the top on for little munchkins or leave it off for older ones. The whole things is BPA-free and dishwasher-safe. $14.99 at amazon.com.