Not to deliver it, but to take the package or envelope, check the address, then put it in a pile to go to a distribution center in the appropriate, proximal zip code of its destination. That done, the mail might wait up to a day to be flown out, two days at times, then another day to be delivered by ground.
Some breeds of dogs have a natural curl or bend to their tails. But others have been selectively bred to take this curl to an extreme, cork-screw shape. Dog breeds with curly tails referred to as screw tails include Boston Terriers, Pugs, Bulldogs and French Bulldogs.
This is usually done as part of a hairstyle such as pigtails, bunches, ponytail for straight, wavy and loosely curled hair and referred to as afro puffs, bunny tails and pineapples for highly curled and highly textured natural hair. Two common types of hair ties are the scrunchie and the hairpin.