Kaleidoscope. A kaleidoscope is a cylinder with mirrors containing loose, colored objects such as beads or pebbles and bits of glass. As the viewer looks into one end, light entering the other creates a colorful pattern, due to the reflection off of the mirrors.
Union dues. Union dues are a regular payment of money made by members of unions. Dues are the cost of membership; they are used to fund the various activities which the union engages in. Nearly all unions require their members to pay dues. Variation. Many union members pay union dues out of their wages, although some unions collect dues separately from the paycheck.
An invoice is a list of products or services given to a client that includes the cost of those services. In other words, an invoice is a bill. You send an invoice to someone because they owe your business money.