holding it physically is not cost effective at all... bad idea.

just buy SLV --- each share is 10 ounces bullion.

GLD is 1/10 ounce gold per share.
very cheap....

each fund has a giant safe with all the bullion and you buy the symbols like stock.. should pay $7 per purchase ... cant beat that.

otherwise if you simply need to waste money by physically holding it:

https://online.kitco.com/selling/

http://www.apmex.com/shop/buy/Silver_bullion.asp?orderid=0

these places buy and sell.