The Consumers' Foundation said Thursday that 21 percent of the toys it recently inspected failed to pass safety tests, with 7 percent containing excessive levels of plasticizer that could affect children's endocrine systems and cause cancer. According to the foundation, six out of the 28 toy samples it collected from toy stores, hypermarkets and shopping websites in May failed to pass chemical and physical tests. Businesses selling the items were issued warnings, it said. Two of the toys -- both made in China -- contained levels of a plasticizer called DEHP, or Di(2-ethylhexyl) phthalate. One of the toys -- a small doll wearing traditional Korean clothing -- not only contained DEHP at 117 times the limit, but also contained 2.8 times more lead than acceptable, the foundation said. An animal-shaped coin bank from a shopping website contained 126 times the legal limit of DEHP and also failed to pass a physical test as its sharp edges could cause injuries to children's skin or eyes, it said. The foundation said DEHP is a chemical that can interfere with children's endocrine systems, causing feminization in males and increasing females' risk of breast cancer. Excess exposure to lead may interfere with the development of the nervous system and cause acute toxicity, it added. 