Where can I obtain military memorabilia such as patches, uniform items, mugs, etc?

The Air Force can't provide official uniform items, but several private companies exist to meet your needs. The following list does not constitute endorsement. 

Eighth Air Force Museum Gift Shop
P.O. Box 8159
Bossier City, LA 71113
(318) 752-0055 

Action Embroidery Corporation 
1325 W Brooks Street 
Ontario, CA 91762 
(909) 983-1359 

Air Force Museum Foundation, Inc. 
P.O. Box 33624 
Wright-Patterson AFB, OH 45433 
(937) 258-1218 

Battle Zone Ltd 
PO Box 266 
Towaca, NJ 07082 
Fax: (201) 402-7226 

Headquarters for Military Supplies 
131 East 6th Street 
Los Angeles, CA 90014 

Ken Nolan, Inc. 
16901 Milliken 
P.O. Box C-19555 
Irvine, CA 92713 
(714) 863-1531 

Marketing Dynamics Inc. 
19717 Mayhill Terrace 
Gaithersburg, MD 20879 
Phone: (301) 670-0884 
Fax: (301) 990-3646