This is the exact same pattern as in Boys’ day out but without the towl, you can find Boys’ day out here:
http://www.ravelry.com/patterns/library/boys-day-out

And there is an expansion pack for Willy Frog, you’ll find the pattern for the surf board and floatie here:
http://www.ravelry.com/patterns/library/willy-frog-expans...

Difficulty level: medium

Stitches used: slip stitch, single crochet

Details on yarn are in the pattern