Charm packs of Wildflower Serenade are very easy to find online. Are you having trouble? Here are three ranging in price from 6.99 to 8.50 for the pack of 40 5" squares.
http://www.prairierosequiltshop.com/...oducts_id=2767
http://www.fatquartershop.com/store/...77&Parent_Ids=
http://www.overrainbow.com/cgi-bin/S...es=0&lastmenu=