The Tiny Mouse makes a terrific first mouse for small children. At half the size of a regular mouse (it’s 3.25″ long), it’s sized right for little hands. And it’s now available with optical tracking so there’s no ball to get dirty, lost or malfunction. The mouse even has red and blue dots on the buttons to help kids learn left and right. The tiny mouse is compatible with Windows 98SE, 2000, ME, XP, MAC OS 10.1.5 and higher. It retails for $19.95.