The Chicka Chicka Boom Boom Board Book is on sale $3.64 at Amazon right now. That's 54% off the list price of $7.99!
I spotted a couple more that were over 50% off as well:
Animals (Baby Touch and Feel) – $2.79 (reg $5.99)
Doggies (Boynton on Board) – $2.64 (reg $5.99)
Little Blue Truck Board Book – $3.20 (reg $6.99)
Shipping is free with Amazon Prime or if you spend or more.
See all posted Amazon book deals! Remember, Amazon prices flip fast. If you see something you like at a price that works for you, you may want to buy it in case the cost goes up.