What's secretly handcrafted each night in your cabin by a skilled artisan and looks like a monkey wearing your sunglasses one day, a manta ray holding the TV remote another and an angry spider eating pillow chocolates the next?
If you guessed "towel animals," you've been on a cruise before -- or have at least spent a lot of time here on Cruise Critic.
Towel animals, left behind by room stewards during turndown service, are one of cruise travel's longest-standing traditions. (The towel dodo bird reportedly made an appearance on Titanic.) And it's clear that cruisers have a profound love affair with these creatures.
Take a peek at 11 of the best cruise ship towel animals submitted by our readers, and post your favorites on Cruise Critic's Facebook page.
--By Dan Askin, Cruise Critic contributor; updated by Ashley Kosciolek, Editor
Photo by Hilary Mason/Flickr
"Piggie Wearing Beach Hat from Curves"
Truth in towels: We do feel like a pig on the beach by the last day of our cruise.
Photo by Nicole Eger DelBuono
"I vant to suck your bloody Mary," says towel bat on vacation.
Ship: Rhapsody of the Seas
Photo by Jorge L. Orchilles
"Apology from the Cabin Steward and His Assistant Who Failed to Introduce Themselves Until the 3rd Day of the Cruise"
I wonder who has to clean up all those rose petals. We're pretty sure it's not the towel swans.
Ship: Norwegian Jewel
Photo by Diane Strickland
Every time you shower, a towel animal dies.
Ship: Carnival Glory
Photo by Derek Hackbardt
"Struttin' Like a...."
Go ahead. Take a chocolate. I dare ya!
Ship: Disney Magic
Photo by Carolyn Spencer Brown
"Venetian Towel Animals"
Lone ranger towel dog does not approve.
Ship: Carnival Dream
Photo by Carrie Donaldson Keller
Why we don't let our towels party too hard on theme nights.
Ship: Carnival Fantasy
Photo by Cyndi Hollan, AKA Cruise Critic member marcyn
Jeepers creepers. We don't wanna know where the cabin steward got those peepers.
Photo by Susan Wheeler
"Towel Animals on Display"
Welcome to the spa. Our products are not tested on towel animals.
Ship: Celebrity Millennium
Photo by Cheryl Corwin
"Didn't Expect Anyone to Be in Our Cabin"
And the number one way to give your cabinmate a heart attack is ...
Ship: Voyager of the Seas
Photo by Rick Howell
"Elephant Keeping Guard Over HAL Goodies"
If we throw the towel elephant some peanuts, will he relinquish the pillow chocolates?
Photo by Wendy London