Buy collectible silver art bars:
http://www.bonanza.com/booths/SolidSilverPM indicating which bars or rounds you are interested in.
We accept bitcoins for the silver and will give board members a 5% discount.
Yes, these bars are priced higher than more generic bullion bars. Some people do collect them. We think collectible silver art bars provide a more enjoyable stacking experience!
We also ship FedEx which is more expensive than USPS (but better).