Youku2012 via eBay offers the Aluminum Mini Briefcase Business Card Holder
in five colors (Black pictured) for $3.40
with free shipping
. That's the lowest total price we could find by $1 (outside of other eBay sellers), although we saw it for a buck less in March. The case is styled after a Zero Halliburton attache case and has a capacity for about 30 cards.
Note: This item ships from China and may take two to eight weeks for delivery.