EVA Foam Details
EVA foam is easy to use, cheap, and very accessible. To make these elegant designs you can purchase a silicone mold or make one (another video for another time). Dampen your EVA foam and insert into mold. Allow it to mostly dry- you want it a little damp if you are going to apply this on a non-flat surface. Once pulled from mold you can attach it with your adhesive and apply to your project.
Where to purchase-