This electronic butterfly will flutter around its jar forever to add some cheer to your desk as long as you feed it some AAA batteries occasionally. Basically, unlike a real captive butterfly, it'll never let you down or desert you.
I can't guarantee that it'll never make you cry though. [ThinkGeek]
DISCUSSION
why is the mouse on top of the wacom tablet? I am not to smartest man around, but I'm pretty sure that wacom tablets don't work like that