Fungus amungus made a great portable thought bubble –
“Ever want to know what your friends are thinking? What about the thoughts of cats and dogs and trees? They have to be thinking of something and now you have a chance to find out with the Portable Thought Bubble.
You’ve seen thought bubbles in action in comic strips and comic books and other comical environs, but now they can be anywhere you want them to be. So go and unleash the power of the mind.
Free the knowledge!” – Link.