I had wanted to be Carmen Sandiego for a while, because I had the long red pea coat already. Once you have that, the only other thing you really need to worry about is the hat.
I had a hard time finding a fedora big enough that it looked like hers. I finally found one at a costume shop. It was originally a “pimp hat,” but I covered up the cheetah print with a band of yellow paper. The yellow is important, because I’ve seen people do it without (it depends on what year of the cartoon you’re looking at) and they aren’t as recognizable.
The only other things you need are black pants, black gloves, and black boots. I also opted to use a briefcase for candy and taped a world with a question mark on it, just to make sure there was no doubt I was her.
Put on some red lipstick, and you’re ready to sneak around the world.