Kids love stamping their sight words using all different stamps. A few years ago, Jo Ann Fabric had various letter stamp sets in their $1.00 section. I stocked up, and began using them in centers. Centers are a thing of the past in my room, so I occasionally use the stamps in intervention groups or for reading groups. I keep them in this handy organizer that I found at Michael's for $12.99-my 40% coupon.