Posters on my door.? I want to make some posters with sayings similar to "stay out"...

I want to make some posters with sayings similar to "stay out" or "my room!" but I want something more.I don't know.uncommon? So please give me a few design! Thanks!

(Also nothing bad. Nothing to bring me in trouble please!)
Sam's Club furniture any accurate?
hey sis!! maybe a cool sign would be like "no friends are worth crying over but the friends who are won't manufacture you cry. so if you are a friend thats gonna make me cry, then don't tolerate the door hit you on the way OUT!" idk, my sister has a sign kinda similar to that in her room.
How much would it cost (aprox) to build...
stay out and my room

Im turing 11 this year and entail minister...
Beyond this door lyes a sleeping make-up. Be careful to not wake her.
I can't be held responsible fo things that could develop to you if you open this door.
I have closed and locked this door to hold on to my family safe. There is a dreadful monster in here, and should you choose to open the door, I can no longer promise protection. LoL.

I used to put some crazy stuff on my door. LOL
I even put on here once that my room had been dubbed a biohazard by the EPA and could not be enter.
Looking for rolls of sticky spinal column plastic...
Answers:    My cousin has:
"Keep Out! Or else this princess will put her royal shoe surrounded by your royal butt!!"

I have:
"Unless you want the house to blow up, i suggest you step away from my door."
The for people to come contained by:
"Welcome to paradise... now gimme $5 or you are out!"