Cell.Expert via eBay offers the Carbon Fiber Pattern Hard Case Cover for iPhone 6 Plus in Black for $1.21 with free shipping. (It's available for the iPhone 6 for a few cents more.) That's tied with our mention from $3 weeks ago and $5 under the lowest total price we could find for a similar case outside of other eBay sellers.

Note: This item ships from Hong Kong and may take three to eight weeks to arrive.