Not only are products being illegally sold to children, but some are also potentially harmful to health, and have been found to contain dangerous chemicals and harmful levels of metals like lead.
Mae cynnyrch yn cael eu gwerthu'n anghyfreithlon i blant, ac mae rhai hefyd yn niweidiol i iechyd, a gwelwyd eu bod yn cynnwys cemegau peryglus a lefelau niweidiol o fetelau fel plwm.