Amazon is offering a nice promotion right now. Spend $75 or more on toys and get $10 back to use on a future purchase of toys and games.
This includes almost everything Amazon sells (no 3rd party sellers) but it does exclude Lego, American Girl, Elf on the Shelf and Anki items.
Once you spend the $75, you will get an email from Amazon with your redemption code for the $10 credit. Looks like the $10 credit does expire 1/3/18.
You can get more details on the promotion and take a look at the toys and games available by clicking here.
And if you are still deciding what types of gifts the kids might like, you can see some of the top holiday toys for kids here.