here are some diagraphs bookmarks for your students to group words the sound the same together.
you can download it and add your own collection in the blank table I added extra for you.
All you have to do is :
1. print them.;)
2. cut them all up.
3. laminate them.
and there you have 'em ready
here is a screen shot of one http://im35.gulfup.com/ImSIu.jpg