Sometimes you need a tiny friend to tag along. If they give you test answers or happen to be secret scientists studying your every move*, that's none of our business, really.
Each 1" acrylic mouse is holding on for dear life to a ¾" safety pin lock. Choose from Up Mouse (one eye) or Down Mouse (two eyes). If you're really feeling squeaky, choose both!
*Hitchhiker's Guide reference. Come on, guys, get with it!