Ozab - $5.98 TSA Approved Travel Security 4-Dial Combination Luggage Lock (+$1 Shipping)
For each extra lock, pay only 50c in shipping.
Ozab is listing this item on eBay.
There were still 900+ when I first posted this deal.
Travel Sentry is the luggage security system officially recognized by: TSA - the Transportation Security Administration.
TSA screens every passenger's baggage before it's placed on an airplane. While TSA technology allows the custom to electronically screen bags, there are times when the security officers need to physically inspect a piece of luggage. TSA has worked with several big companies to develop locks that can be opened by security officers using universal "master" keys so that the locks may not have to be cut. The packaging on the locks indicates whether they can be opened by TSA.
Dimension: 2.6" x 1.24" x 0.5"
Material: Zinc Alloy