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''Knock, knock.'' ''Who's there?'' ''Donut.'' ''Donut who?'' ''Donut ask, it's a secret!''
- Brighten their day and give 'em a giggle with Knock Knock Jokes: Side-Splitting Lunch Box Jokes.
- Featuring funny, silly knock knock jokes and colorful pictures on coated cards!
- 60 different cards.
- Tuck one in your child's lunch each day.
- Heavyweight card stock.
- Fronts of cards are coated.
- Parents can add personal notes on the uncoated card backs.
- Lively full-color designs.
- Easy-to-read jokes.
- Cards come packaged in a reusable box.
- Cards measure 3-1/4'' square.
- They fit easily in lunchboxes, lunch bags, and backpacks.
- Amusing pictures combined with funny wordplay will bring a smile to their day!