Literacy Centers! :) middle sound and beginning sound . . . free! (I am not a big fan of the messy stamps, but this would be awesome laminated, then the kids could use dry erase markers!
Stamp it Up!
Miss Kindergarten: Stamp it Up!
Sight Word Graphing - good idea, can adapt for more difficult words and get a newspaper article or a page from a book/story and have them go through and graph how many times the sight words occur from the article/story.