How cute is this?
I got this photo from How About Orange (which is a great blog that deserves further exploration, BTW). The pattern for this adorable little robe (made from a bath towel) can be found on Sew, Mama, Sew!
If I knew how to sew better, I would come up with a design for an adult robe that would include a hood and maybe some additional detail, like pockets. You'd need more than one towel, which introduces additional design possibilities. Fun!