Involved a bit of post processing - the ripple effect is 'real' though.
The wallpaper version is available at the preceding link.
Today's Gratitude Item: The 'inner' cardboard roll from a bolt of fabric. Said 'role' formed the base for some Christmas cracker shaped 'thank you' gifts for some of my students who will be helping out with the sound / lighting for prize giving. I now have a bunch of festive 'crackers' (filled with candy) all ready to go. It should make prize giving that little bit more fun for the guys in 'the booth'.