I would use a rubber band and put a ribbon or tulle around to cover the rubber band.
I used diapers and put a big bow around it.
Hugs Yvonne
plus there a design on the front of the cake tried pins bands i know they sale them on ebay thats what give me the idea
http://projects.cuteembroidery.co...
i did a diaper cake and used ribbons...you can then tuck extra little gifts in them...like soap, shampoos, rinses, combs, brushes...ets...
bottom layer is the bath towels, 2nd layer is the hand towels and the top is the wash cloths... the top can be sosme unique bath item or fan out another wash cloth you embroidered...maybe a toilet paper roll wgith it embroidered...good luck
I've made a diaper cake which would be about the same ame I used the little push pins you use for sewing. You have to put the pins in far enough so you don't see them. I hope this helps. Arlene
Try running a dowel down the center of the towels, make sure it is long enough to reach a few inches into the top one. I would think that even a paper towel tube might work, just squeeze it down and then bury it, so it won't show.
at dollar tree they have deco bags that i use to put towel sets in and they show great & make for a great gift for any occasion. i hope this helps you. I have also put a ribbon around it so it looks nice n neat. grammy
Why not tie it with a ribbon & incorporate it as a decoration.
By the way, I have seen some really beautiful cakes with bows made of icing as main decoration!