Nintendo offers a "Nintendo Ds Lite 5 in 1 Combo Nintendo Lite Ds Case" for your Nintendo DS. The case can hold the Nintendo DS console, and has a compartment inside that you can put NDS cartridges, GBA SP cartridges, and stylus etc.
The Nintendo GameCube carrying case works great and comes with a handle.
CNN Presents - 1993 Manhunt Cracking the Case was released on: USA: 2002
Motives and Murders Cracking the Case - 2012 was released on: USA: 3 November 2012
I think EVA Carrying Hard Shell Case for NDS that is on amazon is the best option. It looks cool and it is weary cheap.
There is no real 'best case' to stop the ipod cracking when dropped, but i would recommend the rubbery cases to the hard shell cases, as this does offer more protection to your ipod. I would also recommend a screen protector kit to stop your ipods screen scratching. These are around £10 at your local supermarket (eg) tesco.
Motives and Murders Cracking the Case - 2012 Never a Doubt was released on: USA: April 2013
Motives and Murders Cracking the Case - 2012 Not Again 1-6 was released on: USA: December 2012
It was during the 911 attack
The Nintendo DS - Accessory Bundle - 17 in 1 Bundle Pak includes a waterproof case for your Nintendo DS.
nds case sizeA Nintendo DS Game case isapprox: 135mm wide x 20mm deep x 122mm high
Motives and Murders Cracking the Case - 2012 A Secret Life 3-6 was released on: USA: November 2013