well i am quite sure you could buy plactecine from most shops for a reasanoble price. i am making a wallace and gromit x shaun the sheep story and i managed to get some newplast for £6.00 quite reasanoble.
Sadly, arthur, I think I know! Plus, Cinders said that Conty got 24 blocks for £21! That equals 8.75 pence! Oh yes and how many blocks did you get for £6.00?