BenBenKim7 via eBay offers the Wireless Qi Power Charging Pad in Black or White for $6.39 with free shipping. That's tied with our mention from a week ago and the lowest total price we've seen. (It's a current low by at least a buck.) It's compatible with select HTC, Lumia, Nexus, Galaxy, and Note models.

Expect shipping to take three to four weeks.