These designs are from the new book by Lynn Koolish, Cupcakes!: 30+ Yummy Projects to Sew, Quilt, Knit & Bake.
From Cupcakes! by Lynn Koolish:
Also, the publisher, C&T Publishing, had a cupcake design challenge in March using their Ready-To-Go!® Cupcake Blank Board Book (pictured above, it's a 14-page blank book that you can decorate however you like). You can see some more of the designs in this Flickr set. This cupcake fish is by Jane Hasty:
Follow them on Twitter or read their blog for the scoop on the next cupcake design challenge.