Walmart offers the I Spy Preschool Game for $7.72. Opt for in-store pickup to dodge the $5.99 shipping fee and cut the price to $7.44.(Amazon offers it as an add-on item with orders of $25 or more for the same price.) That's the lowest price we could find by $13. It promotes matching, reading, and social skills.

Update: The price has dropped to $7.29 in-cart. Amazon is pennies more.