Here is a link to another thread for post-it note templates. It's a start, and any of these patterns could be modified to fit your needs...
Forums at SplitcoaststampersAlso, if you want the directions and template of leslierich's awesome holders, send her a PM...it says in the picture of her post-it holders to PM her for instructions and template. I'd try it again! She may be too busy stamping her beautiful creations to check her computer that often!!!
HTH!