What is that thing supposed to be? Is it in the ad just to attract attention?
Ooh, that is weird.
Rolled up towels, maybe?
Cruises like to make fancy towel critters with your towels in your room, so that’s probably the connection.
Petrified monkey demon.
My guess was someone on a cruise was so bored they started making vaguely erotic bunny shaped sculptures out of towels, blankets, and sunglasses.
Bored… or stimulated?
Never seen anything like it. I guess it’s kind of like the tinfoil swans some restaurants will make for leftovers.
I was sure I’d be able to explain it but, no, I have no idea.
Another great username/post combo. 
It’s a towel monkey hanging on the door people! Visualize! It’s so obvious! The sunglasses are there for comedic effect. What’s funnier than a towel monkey in sunglasses hanging on your door?
It will come to life and strangle you in your sleep. Mark my word.
It confuses and frightens me.
And it might get molested once I’m in the room.
One flinging poo?
Lately, I’ve seen ads for a book on Towel Origami, the art of making silly stuff like that.
It’s a towel rolled up to look like a monkey. Cruises and resorts are big on rolling up towels to look like animals to leave you a nice little surprise when they clean. The most common one is towel swans.
ETA: From the same site: make your own towel monkey.
We had a bartender make a chicken once.
Our maids did that on a cruise once. Folded an elephant out of the towels and put my wife’s sunglasses on it.
Kind of ticked off my wife that they were messing with her sunglasses.
I didn’t have the turndown service come into my cruise room very often, but when they did they left a different towel animal each time. One was a monkey like that, looking down from on top the cabinets. And yeah, they did the elephant with my sunglasses bit too.
My mom and I went on a cruise years ago and, in our rush to get out to the pool, we left the cabin a little messy. When I came back, the steward had folded my dirty underwear into a little bird. Grossed me out a bit.
So what’s the deal with cruises and the staff messing with your stuff?
Agreed that it’s supposed to be a towel monkey.
There’s been a TV ad for some hotel chain, within the past year, in which the guests (who have a child) come back to their room, to find that the maid has placed a towel monkey on their bed, much to the enjoyment of the child.