13. Change the location of the bookmark in the book they are reading
14. Hide one shoe from every pair and watch them look around the whole house
15. Replace the vanilla cream from inside their biscuits with toothpaste to make them feel disgusted and crappy
But the only way you can make these harmless pranks successful on your siblings is by putting the fear of your parents aside. You can’t let them get involved in this. And you have to make sure they don’t get to know that you’re playing harmless pranks on your siblings. Or else you know what will happen. Rather than enjoying these pranks, you’ll get punished and the reason would be your creepy siblings.