Clay animation or claymation, sometimes plasticine animation, is one of many forms of stop-motion animation. The toys featured were Airfix, Plasticine, Meccano, Scalextric, Lego and Hornby. A sculptor might model three-dimensional sketches in clay, plasticine or wax. Main character heads were initially sculpted in either Plasticine or clay. Plasticine and similar materials are often used in clay animation. The series used puppets made of plasticine, foam latex and solid plastic replacement style puppets. It was developed as an industrial version of plasticine or hobby clay. The five-inch-high presenter was made from a traditional British modelling clay called Plasticine. The pitch can be slightly altered by the application of plasticine clay or water. Eggs are accepted if reshaped with plasticine or coloured yellow (but not red or blue). For this a simulated soil had been developed from a mixture of sawdust and Plasticine. For the background of exterior shots, he used a miniature Tudor village built of plasticine. Flair Leisure licensed the brand from Humbrol in 2005 and relaunched Plasticine. The rear features the track listing scratched into a flattened layer of plasticine. A second sand cast was made over the plasticine.