Amazon has the following Leapster Explorer games on sale for $9.99 (what a great price!)...
LeapFrog Disney Phineas and Ferb Learning Game
LeapFrog Disney Pixar Brave Learning Game
LeapFrog Explorer Learning Game Disney Tangled
LeapFrog Leap School Reading Learning Game
LeapFrog Dora the Explorer Learning Game
LeapFrog Pet Pals 2 Learning GameLeapFrog
SpongeBob SquarePants: The Clam Prix Learning Game
There are also lots of other games on sale for under $20 so make sure you take a good look around!
Super Saver Shipping is free when you spend $35 or you can get free shipping with no minimum with Amazon Prime (sign up for a 30 day free trial here).
Disclaimer: This post contains my affiliate link.