Simple Diffuser By scratchr in CraftArt4,30141Save PDFFavoriteIntroduction: Simple DiffuserBy scratchrian's siteFollowMore by the author: Want a simple diffuser for a project, look no further, here is a simple diffuser.Step 1: Parts You need transparencies and sandpaper.Step 2: Sand Sand the transparencies on each side.Step 3: Done Great now you have a diffuser! Very useful in lamps. I used this for my Joule thief lantern.