Amazon offers its Prime members the Winfun Kids Learning Pad
in Black, model no. 8168-01, for $5.39
with free shipping
. (Non-members can spend over $25 for free shipping; otherwise, it adds $5.18.) That's the lowest total price we could find by $18. Sales tax is added where applicable. It features 30 activities including questions, mathematics, music and games, and runs on three AAA batteries (included).