I recently purchased a Pelican case for our camcorder and assorted audio/visual equipment.  These hard-sided plastic cases are filled with foam padding that you custom cut to create snug-fitting indentations to hold your camera, lenses, microphones, laptop, or whatever equipment you need to safely carry around.  Pelican cases are practically indestructible.  They come with an "unconditional lifetime guarantee" printed on the side of the shipping box.  The guarantee reads as follows:

"If for any reason you are not satisfied with the quality or performance of any PELICAN product, we will gladly replace the product or refund your money (at your option) within 30 days of purchase through the original retailer/dealer.  PELICAN PRODUCTS will continue to guarantee the product directly for a lifetime against breakage or defects in workmanship … This guarantee is void only if the PELICAN product has been abused beyond normal and sensible wear and tear.  

THE ABOVE GUARANTEE DOES NOT COVER SHARKBITE, BEAR ATTACK OR CHILDREN UNDER 5. "

The Pelican web site shows their products being used under all sorts of harsh, rugged condtions   But apparetly they are not guaranteed to withstand a determined assault by a four-year-old!