According to Guatemalan folklore, worry dolls (about half an inch high) are given to children who tell them their worries before they go to sleep. They place the worry dolls under their pillow and in the morning the dolls have taken their worries away. I think it’d be really funny to swap out the worry dolls with some tried ’n true rubber vomit while the kids are asleep. That’d give those little brats something to worry about. Heh. 
So the comfort device now gets drafted into the horror realm with upcoming Worry Dolls movie, premiering at England’s Film4FRightFest in August, 2015. (Their website said is was coming out summer of 2014. Liars.) Nevertheless, Worry Dolls, with a really slick ad poster, goes a little something like this: “In the aftermath of the hunt for a serial killer, an ancient curse consumes a city, causing a series of brutal murders and pits a detective against the clock to save his daughter’s life.”
I bet the ancient curse somehow involves the use of rubber vomit. 
There were worry doll horror movies before this. First up was Dangerous Worry Dolls (2007), this one had the title characters coming out of a swollen hole in your forehead meant for a pineal gland gone wild. (See From Beyond/1986.) 
Here’s how dangerous these worry dolls are: “While serving time in a brutal women’s detention center. Eva wishes away her troubles to a set of tiny worry dolls. The dolls crawl in her ear at night and soon Eva becomes possessed.” 
And, for those of you with a more sensitive horror stomach, Worry Dolls, featured as an episode on R.L. Stine’s The Haunting Hour: The Series, aired in October of 2013. There were no pineal glands in that one, which is why it sucked. 
You can find worry dolls on Etsy™ for $19.95. But you can get yourself outfitted with a timelessly hysterical rubber vomit novelty toy for $7.30 (+ $2.04 shipping) on eBay™. Talk about putting the gag in gag gift. Heh.
Drinkin' & Drive-in 