Scratch from MIT is now over 10 years old, but watching a child start to code on it (they don't type it, they drag and drop) just shows how right they got their initial design ideas.
Some success for the beginner is 4 or 5 minutes away. A great start.
I bought a Raspberry Pi - Scratch is included- last year (for my 6 and 8 y.o.'s) but without a dedicated monitor it never got used (iPads will always win). With a nice monitor, keyboard & mouse and a quiet spot however, it has been a huge hit. But it didn't cost $25 or whatever the headline cost is!
Check out the 'remixes' on this link - a brilliant idea.
How To Draw A Guinea Pig