I came across this one pretty late, but the Humble Bundle Maker Skill Builders is still available for a couple of more days
There are multiple bundles available: $1.00, $8.00, $15.00 (includes Modern Leatherwork for Makers), and $20.00 (or more if you like).
I’m not affiliated in any way. It just looks good for getting kids started (and nobody will tell if you buy the stuff for yourself either 
) with making.
From the website:
The Humble Book Bundle: Maker Skill Builders by Make:
If you bundle it, they will come. Build your dreams with our new bundle from Maker Media! You’ll get brand-new 2017 releases like Zero to Maker, Second Edition; Design for CNC; Getting Started with the micro:bit; Getting Started with 3D Carving; Modern Leatherwork for Makers; and more. Plus, check out Humble-exclusive first looks of Jumpstarting JavaScript and Jumpstarting C! If you build it, it will be awesome.
Pay what you want. All together, these books and magazines would cost over $281. Here at Humble Bundle, you choose the price and increase your contribution to upgrade your bundle! This bundle has a minimum $1 purchase.
Read them anywhere. The books in this bundle are available in PDF, ePUB, and MOBI formats, meaning you can read them anywhere at any time. The magazines are available in PDF only. Instructions and a list of recommended reading programs can be found here.
Support charity. Choose where the money goes: between the publisher, Make:, and the charity, Maker Ed (via the Tides Foundation). If you like what we do, you can leave us a Humble Tip too!