Cartoon Book Plates
http://www.myhomelibrary.org/cartoons/cartoonists1.html
For additional book plates on this site try http://www.myhomelibrary.org/bookplates.html
Do you loan out your books? Then you may want to print one of more of these book plates to paste into your books to say the book should be returned to you. They are fun and if nothing else you will get a laugh form some.

Kids Hub
http://kidshub.org
A very nice collection of fun activities for your students. Covers a variety of subjects. You will need to have Shockwave installed for several of the resource.