paperweight

/P EY1 P ER0 W EY0 T/
noun
  1. 1

    A small, decorative, somewhat weighty object placed on one or more pieces of paper to keep them from fluttering away.

  2. 2

    Any object used for this purpose.

    โ€œJohn used his coffee mug as a paperweight.โ€

  3. 3

    A useless piece of equipment.

Source: https://en.wiktionary.org/wiki/paperweight