orightthere via eBay offers this 6.6-Foot 6-LED USB Borescope Inspection Camera for $4.12 with free shipping. That's tied with our August mention and the best deal now by $2, excluding other eBay vendors. This waterproof borescope features a 0.28" camera head, 640x480 maximum resolution, and mirror attachment.

Note: This item ships from Malaysia and requires two to five weeks for delivery.