WebIOPi is a web application which allows you to control your Raspberry Pi's GPIO. Just install it on your Pi, and use any browser from your network. Click/tap the in/out buttons to change GPIO direction, and click/tap on each output pin button to change their state.
It's useful to start enjoying GPIOs and also to debug some circuits without writing any line of code.
It also allows to control your Pi's GPIOs over Internet, so it's a good starting point for home remote control.
You can even fully customize the included UI with few CSS modifications or use the REST API to build your own client.

Both the boys are working on Scratch projects so this book will arrive to much grabbing.

If you can not boost the economy with a war, why not create jobs supplying large chucks of the world with the new weapons of war? 

"Of particular concern to Northrop Grumman are restrictions on exports such as the company's high-altitude Global Hawk surveillance planes.
The administration last year began informally consulting Congress on plans to sell Global Hawk to South Korea before withdrawing the proposed sale for reasons that have not been publicly disclosed.
Japan, Singapore and Australia also have shown interest in acquiring the aircraft, a Northrop Grumman spokeswoman told Reuters last year.
Bush said that failure to allow such exports could spark a repeat of the 1990s, when strict curbs on U.S. commercial satellite sales prompted other countries to develop rival hardware and software. Those efforts eventually eroded the market share of U.S. satellite producers from more than 70 percent to just around 25 percent.
"The consequences of the decisions that were made in the early '90s were devastating for the US industrial base, and ultimately did nothing to enhance security, and in fact, were detrimental to our security," he said.""