Put lace over a drawer/piece of wood and spray paint through it, leaving the lace design in paint on the wood... You can do this with textures too: Apply Venetian Plaster first , lay the lace into it and reapply another coat of the plaster. Let set and peel out the lace.
Wow! Wall art by Olefir Design. Something similar to this can be made by gluing silk flowers to a canvas and spray painting it white. You can also draw out designs around the flowers with glue before painting.