What you'll need: Hot Dogs, Water, Ketchup, Goldfish Crackers.
Cut the end (leaving about an inch or so uncut) of a hot dog in half, turn and cut in half again making four pieces (or 4 long legs), cut each of those 'legs' in half making 8 legs. Place the cut hot dog into a pot of boiling water. The hot dog will cook and as it does it usually turns up-side-down and opens up. It is done when the legs curl up. Take it out and let it cool a bit on a paper towel. Place on a plate and add ketchup eyes and goldfish around to decorate.