My sister has four boys under the age of 6 and they give us plenty of reason to laugh.
The three year old has a tough time with the word "fish", it comes out as the 'b' word which, I hear, is a whole lot of fun in the fish aisle at Wal-Mart. Oh, and the two year old has difficulty with the word "sucker", substitute the 's' with an 'f' and you have a whole other word there.
Oh, and macaroni and cheese is "honky cheese". They're too cute!!