This kind of goes with Bettina's silhouette lights. I could see possibilities to do custom machine embroidery designs using these ideas:

Backlighting is the way to go with silhouettes. Thanks for the idea! Live Laugh Download Stitch!

You found a lot of inspiring ideas in the net :o)
I'm busy now with customer orders for the next time but January will be a better time to work on new things.
Greetings, Bettina

And these would be cute for Valentine lights:
http://www.sewswell.com/silhouett...