What is the meaning of the Tinkerbell decal on cars?

Oh, dude, the Tinkerbell decal on cars totally means you believe in fairies and magic, obviously. It's like a subtle way of saying, "Hey, I'm whimsical and maybe a little bit of a Disney fanatic." So, if you see one, just remember to clap your hands and say, "I do believe in fairies!" to keep the magic alive.