Lava lamps are made of oil and coloured wax, not water and wax, otherwise the water would boil after a while.
The Philip Morris Tobacco Company's crest has on it Caesar's famous saying "Veni, Vidi, Vici."
The Q in Q-Tip stands for quilted.
The smallest unit of time is the yoctosecond
The "you are here" arrow on maps is called an ideo locator.
There is an Ides in every month, not just March.