Amazon has their Fire Kids Editions on sale. $80 for the 7" and $100 for the 8". If buying more than one, they are also $150 for 2x 7" and $180 for 2x 8".
8" Blue
https://smile.amazon.co
8" Pink
https://smile.amazon.com/All-New-Fire-Tablet-Display-Kid-Proof/dp/B01J94SCAM
8" Yellow
https://smile.amazon.com/All-New-Tablet-Display-Yellow-Kid-Proof/dp/B01J94SBMQ/
7" Blue
https://smile.amazon.com/All-New-Amazon-Fire-7-Kids-Edition-Tablet/dp/B01J90MSDS/
7" Pink
https://smile.amazon.com/All-New-Fire-Tablet-Display-Kid-Proof/dp/B01J90MOVY/
7" Yellow
https://smile.amazon.com/All-New-Tablet-Display-Yellow-Kid-Proof/dp/B01J90N2IS
2x 8" combo for $180
https://smile.amazon.com/gp/product/B072BYGPPZ/
2x 7" combo for $150
https://smile.amazon.co