A woman walks into a costume store

And asks for a Halloween costume under $15 , the store worker says
"Sorry the cheapest we have is $25".
The woman leaves, and goes to another store, again she asks for a costume under $15. The store worker says
"Sorry our cheapest is $30"
She decides to try one more store .
"Hello I've been looking everywhere and I cant find a halloween costume under $15 " says the woman
"Let me see what I can find , I'll be right back"
A few minutes later the store worker comes back with a maraca on his hand.
"Here you go , $14.99"
"What am I supposed to do with this maraca?"
The store worker replies
"Well you stick it up your ass, you shake what your momma gave you and BAM! YOU'RE A RATTLE SNAKE"