Heart and key design on heart-shaped box ... box approximately 7" wide, but pattern can be enlarged or reduced as needed.  Background is stenciled using Tim Holtz stencils or you can substitute others of your choice.  Heart, key, and lock are added embellishments.

DecoArt Americana Acrylic Paints.

Pattern includes photos, instructions, grayscale pattern to trace.

Paper mache box and lock/key embellishments available from Hobby Lobby.