1) Use spellcheck. The misspelled words just make it look amateur.
2) The wide range of very bright colours on the first page are too much, consider using less colour to make it easier to read.
3) I know it's a prank site, but the ones I looked at were rather lame. Do you really need 12 pics of toilet paper? Plus, some of them seemed rather cruel (the guy is 80, remember, it may not be easy for him to clean up the mess after) and the one about a group of you throwing water over a toilet door onto someone seems uncomfortably close to bullying, in my opinion.