How about I tell my father about a fake gift?
Why would you try to prank him like that?
I want to see him as angry as possible
That seems like a cruel joke. You should not try to prank people in a way that involves fake gifts.
Sometimes people need a good pranking.
Yeah, sometimes pranking can be really fun but I believe it should be mutual and with the right person. How would your father feel if he thought he'd be getting something really nice from you? How about giving him an actual gift so both of you are happy?