In particular, the USPS distributes mail to Regional Centers which are assigned to a particular 3-digit partial ZIP (for example, zip codes starting with 921 are in the San Diego, CA area). Check out the excellent zipdecode website to see how partial zip codes map to areas of the country.
A pendeloque is a pear-shaped modification of the round brilliant cut used for diamonds and other gemstones. See also. Briolette; Cut (gems) References
Pentominoes is the set of shapes created by combining 5 squares or cubes, with faces touching each other, in every possible combination. Mirror images and rotations do not count as additional combinations. With this, we achieve 12 unique shapes, as seen below: They tend to resemble the following letters, respectively: