You pretty much have to get everything online. The plastic is called plastisol comes in liquid form heated up in microwave till it becomes molten plastic and pores or injected into moulds . The colours are almost like tintes painters use to colour paint come paint n liquid and powder But I got a few other colours from melting down some old soft plastics I had lying round from different brands and mixing them all together (kaveman, exude, Sebel brands)