Dive into your creative stream
Print out fake dollar bills and fold them into small clips of fake money. (Not too large or else they'll look suspicious) Proceed to leave them in places where people are more likely to find them. People will find them then and realize that the money's fake and then be mad at whatever monster left these around.
When ordering or going out or pizza don’t throw away the pizza box. Keep it for lame empty handed pranks. Then go to a friend’s or family member’s house take the box and fill it with random items (ex: stale bread, orange peels, leftover spaghetti.) Leave it on their doorstep with a note on top saying it was a present from you and to have a nice lunch. It’s the perfect scheme for someone trying to spread misery and woe, or simply has too much time on their hands.