I found and bought 10 of these in the clearance section in local Walmart.
Small (32GB) and slow (USB2) but at this price – who cares?
MSRP: $19.99
Brickseek:
http://brickseek.com/walmart-inve…=1892119
Walmart:
https://www.walmart.com/ip/189211993
Amazon:
https://www.amazon.com/PNY-Attach…B003YC