Jellyfish are "hypnotizing to watch," writes BlessThisStuff, so why not let them hypnotize you in your home or office? The Pulse 80 Jellyfish Aquarium ($1300) was designed with the special needs of jellyfish in mind, and it lets a human operator play with lighting effects. A remote control that governs the LED system lets you choose among thousands of colors and set the brightness and timing for flashes or color shifts.