For anybody with kids, or who knows somebody with kids, or who is a kid at heart yourself, you might be interested in this deal from Humble Bundle. It ends at the end of May 2017.
There are 3 tiers of donation you can do, with some of the money going to charity. For the record: I do not have any type of business relationship with these guys and I have no incentive to share. It just looks like something some of you might be interested in. I have bought from them in the past and will be getting this deal as well.
There is a bonus of $10 off print and $5 off digital subscription to Make: magazine if you spend at least $8. All US funds.