First, pick out your pictures on the computer and make a collage. Second, print them out on vellum. Make sure to check and see if you need to change the printer settings. Third, once the collage is printed leave it alone for a few minutes to dry. Once dry, use your ruler and a light pencil to mark where you need to trim the paper. Fourth, after being trimmed make sure it fights around the lampshade the way you want it to. Fifth, use tiny dots of glue and put it on the back corners and middle of the collage. Sixth, now carefully put it on the lampshade and make sure there are no crinkles or bubbles. REMEMBER: do not bend the vellum because the crease will never go away. Also, if the vellum is printed with and inkjet printer & the vellum ever gets wet, it will most likely smear.