The Disney's-Pixar Toy Story Charactermix Series - Dancing Little Green Men, Woody and Buzz Lightyear. The little characters will react and dance comically when placing close to the sound and music.
When put the characters close together, with respond to sound and music, they will dance with each other. A bottle cap extension can be attached to mount on a bottle cap.
When you feel depressed or hard, just make some joys and fun in watching them dancing in rhythm together in your home and office.