When you and your kids start flying drones you WILL crash them. A lot. Hence why the "unbreakable" bit is important.
My girlfriend and I both bought one each last year, and we had a lot of fun with them. They have a (terrible) camera, they can go pretty fast, they can fly outdoors and fight at least light wind, and most importantly, particularly if you add the propeller guard, they're almost indestructable.
We bought an extra pack of propellers and an extra pack of batteries (the latter to extend flight time) and that's all we needed for a few months of near-daily flight.
We crashed them into trees, dropped them from 100 feet up, flew them at inadvisable speeds indoors, bounced them off walls, ceilings, light fittings, furniture, and occasionally each other, and they survived fine barring a bunch of propeller replacements (which are very cheap).
10/10 would crash again.
Here are two that I just found:
- http://www.amazon.com/Cheerson-2-4GHz-6-Axis-Quadcopter-Brig...
- http://www.amazon.com/4DCopter-Fly-Love-Quadcopter-Controlle...
Syma X12S Nano 6-Axis Gyro 4CH RC Quadcopter with Protection Guard, Color White https://www.amazon.com/dp/B00VVP31DQ/ref=cm_sw_r_cp_awd_r7BK...