BrushWhatever you want.<br /><br />It's basically a building material. You heat up the pellets and get a "putty" texture then you set about forming it into whatever shape/part/repair you want. It's pretty popular with artists and hobbiest that are into RC's and trains and model building and such. <br /><br />Check out their fbook page, there are all sorts of posts showing instamorph projects/uses. <br /><br />https://www.facebook.com/InstaMorph