Knock Knock What I Love about Grandpa Fill in the Love Journal
Knock Knock
Hilarious Knock Knock Jokes for the Whole Family: Wonderfully Silly Gags and Humorous Pictures
1001 Outrageous Dad Jokes and Wisecracks for Fathers and the entire family: Fresh One Liners, Knock Knock Jokes, Stupid Puns, Funny Wordplay and Knee Slappers (Engaging Jokes and Games)
Knock Knock Read Me When… Letters for My Incredible Dad: A Box of Fill-In-The-Blank Letters to Dad
Knock Knock