Certain curios are among the most commonly collected items in the U.S.: coins, comic books, postage stamps, antiques, baseball cards, autographs, seashells, Christmas ornaments, tea cups, bottles, sunglasses, books, porcelain figurines, knives, sports memorabilia and toys, which include Barbie dolls, beanie babies and action figures. People with higher incomes like to collect wine, art and vintage cars.
The types of collections that people accumulate vary widely, depending upon their interests and their disposable income. For example, people who have an interest in music may want to collect music boxes or sheet music. A person who likes elephants may want to collect related memorabilia, including pictures, statuettes and stuffed elephant toys. A Civil War aficionado may want to amass a collection of war memorabilia. A movie fan might decide to collect posters of classic Hollywood films.
Income is a consideration because people on a budget may decide to collect things that can be procured for free, such as rocks or leaves. Collecting butterflies and moths, which are known as Lepidoptera, can also be done for free, although there is an initial investment of necessary equipment. Discarded bird feathers are another cheap type of collection. Egg collecting used to be popular but was made illegal by the Migratory Bird Act.