If you don't already have some, a dozen silver coins is a great thing to have. Gold is pricier, and just for your consideration: it costs almost $1000/oz in a developed country to mine, refine, and mint a gold coin.

Hell, splurge on a case of 22longs, they will never lose their value. just don't buy plastic. There are enough posts here explaining why our money will be worthless one day, let alone that useless "thing" advertised as a must-have.

Edit: a spelling