There have also been issues of toy safety regarding lead paint. Some toy factories, when projects become too large for them to handle, outsource production to other less known factories, often in other countries. Recently, there were some in China that America had to send back. The subcontractors may not be watched as closely and sometimes use improper manufacturing methods. The U.S. government, along with mass market stores, is now moving towards requiring companies to submit their products to testing before they end up on shelves.
In some contexts, gift giving can be construed as bribery. This tends to occur in situations where the gift is given with an implicit or explicit agreement between the giver of the gift and its receiver that some type of service will be rendered (often outside of normal legitimate methods) because of the gift. Some groups, such as government workers, may have strict rules concerning gift giving and receiving so as to avoid the appearance of impropriety.
Meccano was a model construction system that consisted of re-usable metal strips, plates, angle girders, wheels, axles and gears, with nuts and bolts to connect the pieces and enabled the building of working models and mechanical devices. Dinky Toys pioneered the manufacture of die-cast toys with the production of toy cars, trains and ships and model train sets became popular in the 1920s. The Britain's company revolutionized the production of toy soldiers with the invention of the process of hollow casting in lead in 1893 – the company's products remained the industry standard for many years.
A puzzle is a problem or enigma that challenges ingenuity. Solutions to puzzle may require recognizing patterns and creating a particular order. People with a high inductive reasoning aptitude may be better at solving these puzzles than others. Puzzles based on the process of inquiry and discovery to complete may be solved faster by those with good deduction skills. A popular puzzle toy is the Rubik's Cube, invented by Hungarian Ernő Rubik in 1974. Popularized in the 1980s, solving the cube requires planning and problem-solving skills and involves algorithms.
A toy is an item that is used in play, especially one designed for such use. Playing with toys can be an enjoyable means of training young children for life in society. Different materials like wood, clay, paper, and plastic are used to make toys. Many items are designed to serve as toys, but goods produced for other purposes can also be used. For instance, a small child may fold an ordinary piece of paper into an airplane shape and "fly it". Newer forms of toys include interactive digital entertainment. Some toys are produced primarily as collectors' items and are intended for display only.