I've been sitting on a design for a while. Still waiting for a follow-up from the patent office.
Basically, the mouse will come out of my room, notice that I've set dinner out for it (I mean, who the fuck doesn't want some damn Hamburger Helper? Not me!). Excited, it runs forth into the empty vitamin water bottle. In its excitement, it turns its head to the left, and sees the frog. Startled, it runs in the opposite direction, tripping over the allen wrench, and falling down the stairs into a conveniently placed ice cream bucket. Should the mouse run around the box, it should hit it enough to knock the battery off of the box, killing it on impact.