uying small Silver coins (for example Silver crowns in the UK) is one of the cheapest ways to start storing some of your wealth in precious metals. Silver coins are available for around spot price + 10% upwards on ebay for purchase right now. Currently that means around £20 upwards will buy you a Silver Crown made of Solid Sterling, containing 28.28g of Sterling Silver (92.5% purity).

These coins are collectable as coins, a good store of value and widely exchangeable. In some cases they can be used for jewellery production for small jewellers 

Silver coin search links for ebay: