Things that make a 5th Grader giggle (or a 32-year old)

• Regina is the capital of Saskatchewan. Regina rhymes with, well, something.
• Lake Titticaca is the world's highest navigable lake.
• titmouse is really a bird.
• sperm whale is quite large and a marine mammal.
• breast cancer is not the leading killer of women.
• Trojans are from Troy.
• Ramses was a New Kingdom Egyptian pharaoh.
• Pipe Nipple is just funny.
• And pornography checkers flag on both "has strong morals" and "the pen is mightier than" because the first one contains the string "ass" and the second "penis".

Please add some more in the comments. I love these. Because I am 10.