Three blondes were stuck on an island. Then, a magic ferry appeared and gave them each a wish. The first one asked to be really smart, so the ferry turned her into a red head and she swam off the island.
The second blonde asked to be even smarter, so the ferry turned her into a brunette and she built a boat and sailed off the island.
The third blonde asked to be smartest of them all so the ferry turned her into a man and he walked across the bridge.