Here’s a nice mix of tutorials that are great for both the beach and the tub! You’ll find a few different ideas for embellishing as well as some projects designed just for baby which are nice for gift-giving. I’ll be adding to this list as I find more goodies with something unique to offer :).
: This is a little nicer with a strip of fabric and ric-rac trim.
Backpack : This clever project is a backpack & hooded towel in one!
With Pretty Appliques 
: Step-by-step instructions are just for making the robe itself, but shows how lovely it can be with appliques added.
Frog : Takes about an hour (max) and less than $10 to make.
Super Easy Version 
: Basic design but gives a nice idea to embellish with decorative ribbon.
Monster : Fun for toddlers, you’ll need an old sheet (or fabric of choice), fleece (for eyes & back spikes), flannel (for eyes and teeth).
: Uses one bath sheet or plain terry cloth, piping and a yard of cotton material. Includes a template to download.
Spiced Up : Trimmed with 1/3 yard of a cotton print.
: Embellished with a bit of rick-rack and minky dot.
Simple : Instructions for this are via pdf.
Baby Set 
: Project includes two 9-inch washcloths.
For Baby : Made with pretty material, terry cloth and double-fold bias tape.