Thin, colorful foam that can be cut and shaped to make flowers or leaves (or other small items). You can cut with scissors or dies (or a paper punch). You can use rubber stamp ink to subtly ink the edges of petals or leaves for a more realistic look. And you can heat the punched-out petals or leaves and form them (quickly) when still warm (and it doesn't take much heat). You can also add veins and texture to leaves by pressing the foam against real leaves (or floral leaves) when warm. See the Kaisercraft blog for a video tutorial.
1 sheet (A4 size so approx. 8-1/4" x 11-1/2").181101new