promotional toys can fall into any of the other toy categories; for example they can be dolls or action figures based on the characters of movies or professional athletes, or they can be balls, yo-yos, and lunch boxes with logos on them. sometimes they are given away for free as a form of advertising. model aircraft are often toys that are used by airlines to promote their brand, just as toy cars and trucks and model trains are used by trucking, railroad and other companies as well. many food manufacturers run promotions where a toy is included with the main product as a prize. toys are also used as premiums, where consumers redeem proofs of purchase from a product and pay shipping and handling fees to get the toy. some people go to great lengths to collect these sorts of promotional toys.