Honeywell fireproof safe
I really want one of these for my 3rd off-site hard drive. Seems like a good place to store important documents and crucial copies of things. I think a safety deposit box would still be safer, technically, but this seems like the next best option.
Amazingly, this thing is only $50.
ioSafe SOLO G3 is a waterproof and fireproof backup solution
This thing is crazy man. There are literally people on YouTube who have filmed themselves putting this thing into a fire and submerging it in water. Here are those videos.