Sculpt It air dry clay is easy to work with for kids and adults alike and dries hard without any cracking or breaking (unlike other air dry clays).
3D Heart card you can make. This one looks fun and simple too! The original pin is in Chinese, but it is all just step by step in photographs. looks like she glues the two big pieces together when she is done since she doesn't show that. Simple glue stick would do that! Have fun!