1. Take 12 splendid designers:

2. Ask them to provide an image inspired by Light.

3. Using some sort of magic, refract said images through a Swarovski crystal and allow people to meddle with them with a mouse hover.

Images courtesy of SHOWstudio

4. Run an automatic spooky music track on the page that will eventually convince viewers to check that poltergeists aren't coming out of the television.

Et voila! SHOWStudio's 12 days of Christmas. It finished on the 6th, so all 12 are there for you to go and fiddle with now.