Try the S.H.W.A.P. in Al Campbel's "Beginning Fly Tying" tutorial on this board.
Here is the link:
http://flyanglersonline.com/flytying...ners/part9.php
Very easy fly to ty and very effective so tie a bunch of them. Vary the sizes too just like Al says in the article. Get them going on those other patterns in the beginners secion as well.