Millions of people all over the world enjoy the hobby of collecting.
Anything can be collected. The most usual things to collect 1) ____________________. Some examples of more unusual collectibles are board games, cheese labels, empty cereal boxes, advertising pencils, airsickness bags, telephones, drugstore tins, baby rattles, bug sprayers, and swanky swigs (decorated jelly jar glasses).
Collectors tend to collect items that have personal meaning to them, such as objects 2) ____________________. For example, iron toy cars were extremely popular in the early 20th century. Adults who grew up during that era will likely make up the majority of 3) __________________. Collectors who grew up in the 1960s often collect action figures, superhero comic books, robots, or other items that were popular 4) __________________.