When i'm travelling I carry my passport and serious money in one of the ankle money holders they sell in travel shops. Just stick it under your sock (on the inside of your ankle if you really are worried about anyone seeing it) and it's very secure and handy. unlike when you have to start to undress to get at a money belt, or the dead giveaway of a lump under your shirt on your chest with a wallet round your neck. a mugger is going to see that.
Personally I don't have a survival tin. The contents are scattered on keyrings, zip fobs, and wallets. In fact till I found this site I didn't even think of them as a kit. I just kept things lke a light and whistle on my keyring and needles and threads in my wallet because they were handy!
simon