I love using plastic screens for introducing and practicing letters and sight words.  Plastic screens can be found in any craft store (Michaels or JoAnn Fabrics) or in the craft section of most department stores.  When I use the screens for teaching letters, I typically cut one sheet into quarters and then for the sight words, I’ll cut 3 long strips.  You can use ready-made templates of letters or sight words or you can simply write the letters/words on paper yourself.  First have your students place the paper on top of the screen and, with a crayon, trace the letter or letters of the sight word.  When they remove the paper, the letter/word will be “bumpy” on the paper.  If