Adorama offers Stack-On Large Portable Security Case with Biometric Lock for $19.99 (orig. $59.95) with free shipping.

Product Description:
 Designed to secure a wallet, credit cards, cell phone or other valuables while you are on the go
• The one touch Biometric lock makes accessing your secure items fast and easy. The lock can be programmed to accept up to twenty different fingerprints. As an added security feature, after three rejected fingerprint scans, a sixty second lockout will result, followed by a five minute lockout if any fingerprint is rejected again
• Slim line design allows for storage in a briefcase, under the seat of many cars and trucks
• Foam padded interior protects the contents during transit
• Body is designed for case to be secured with the included steel cable (1500 test lbs.)
• Audible tones can easily be silenced for stealthy opening
• A low battery warning system, 2 back-up keys and all hardware is included
• Meets TSA airline guidelines