Mood Beams Kaleidoscopic Critters

All of these Mood Beams are so freaking cute, I would have a very difficult time choosing which one to get. I don't know what to call them. Is it a lamp? It's sort of like a lamp...light..toy..thing.

Here's what the Firebox website says:
"Basically Mood Beams are a funky tribe of supremely portable, battery-operated characters that cycle through a spectrum of hypnotic colours. They're also sensitive to sound, so if you put them next to your radio or CD player they'll change colour in time to the beat of the music. It's like having a ravey light show emanating from within an amorphous Japanese cartoon character. Well, sort of."

There have been 3 series so far and each character has a name that describes its expression. For example, Series 3 (pictured in the large center photo below) has characters named Chipper, Dizzy, Gloomy and Peppy.