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The McDonald's Happy Meal was introduced in 1977. One of the original toys available with the meal was a small plastic tumbler with Ronald McDonald on the side. Children who drank from these tumblers allegedly suffered varying effects including hallucinations, emotional and physical outbursts, blisters around the mouth, and increased physical strength. A 5-year-old girl from St. Louis, Missouri reportedly was able to "toss... a car with such force that several pedestrians [were] critically injured..." No person over the age of fourteen was affected by drinking from the tumblers.

Most of these tumblers were either destroyed by McDonald's franchises or otherwise lost. Every few years one of the tumblers will show up on eBay, but the auction is usually deleted from the system within minutes of being posted.

There are seven words in every Gideon's Bible - y'know, the one they stuff in every hotel room - that can't be found in any other bible. If you repeat those seven words to yourself while grasping the doorknob to your room, the door will open to any hotel room in the world. Of course, if you want to control where you're going, you'll need to know the Gideon's Key - one more inserted word, unique to each copy, that acts as an index for each room.