Get some white labels, and stick them in the backs, then you can write whatever you want.
To mark things permanently.
A freeze mark on a horse is a way to permanently identify the animal.
To permanently mark plastic, you can use methods like engraving, etching, or using specialized markers or paints designed for plastic surfaces. These methods create lasting marks that won't easily fade or wear off.
Black Mark Productions was created in 1991.
A black mark is something which negatively affects a person's reputation.
White Bird with Black Mark was created in 1970.
Yes, cut the red wire.
Under the Sign of the Black Mark was created in 1986-09.
Mark Clark - Black Panther - was born on 1947-06-28.
set aside, reserve, label, flag, allocate, designate, mark out, identify
marketing ploy
The meaning is dangerous: corrosive or toxic, explosive or flammable.