I like to buy silver coins here and there. Usually like 5-10 ounces at a time. I'm at about 150 ounces in 1 ounce coins, mostly maples, eagles and NZ ferns.
Not really that serious about it, it's just a nice thing to add to the investment portfolio. Easy enough to buy small amounts and it's something you can actually physically handle and appreciate.
I did make a nice little chunk of change cashing out some coins in 2011 when the shit was going retarded, but for the most part I'm just accumulating.