Worbla's Finest Art - xs size
These extra small sheets are approximately 16 x 29.7cm in size, about 25% smaller than A4.
Worbla's Finest Art is a thermoplastic that's ultra cosplayer-friendly. It cuts easily with a knife or a pair of scissors. Then simply heat it up with steam, hot water or hot air (90°C), and it'll become mouldable. Once it's cooled down it goes hard again.
Worbla's work with spray paints and acrylics very well. There is glue on the shiny side, so multiple layers can be added when it's hot. And because it's only about 1mm thick, it's very good for creating details.
Don't throw away any leftovers! They can be heated up and then rolled together, then you can use it like putty.