How do i attract roaches? were trying to pull a prank on my lil sister and her...

were trying to pull a prank on my lil sister and her friend so we considered necessary to put something under her bed that will attract roaches. we live on the water so yes nearby is coacraches to attract lol. any food suggestions?
What's the most creative entry you can do...
Answers:    Bad idea. You'll get a brief gurgle at your sister's expense, then spend weeks trying to get rid of the roaches.

Plastic cockroaches are a better prank.

(Tricking her into thinking she have roaches is a prank. Actually giving her roaches is just destructive.)
Carniverous plants?
Might sound resembling a cool prank , but once a few of them get in , how do you plan on getting rid of them? Just ask them to exit? You do realize that only a few roaches will become hundreds in a week, Don`t know nearly you , but i`m sure your parents wont think it`s funny and neither will you when they start crawling all over you within your bed. Try and find another prank , like maybe a frog contained by her bed
Red Flowers?
yeah , you must have been a blast to grow up next to...