Here are some userboxes for your use.

Aviation

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Code Result
{{User:Gunny01/DCGreen}}
DCThis user's flying head gear, be it headsets or helmets, is in David Clark Green
{{User:Gunny01/IntOrange}}
IOThis user's flight suit is International Orange
{{User:Gunny01/UB/pilot-0}}
p-0This user cannot fly under any circumstances.
{{User:Gunny01/UB/pilot-1}}
p-1This user is a student pilot, with no offical qualifications (yet).
{{User:Gunny01/UB/pilot-2}}
p-2This user has a solo pilot's licence.
{{User:Gunny01/UB/pilot-3}}
p-3This user is an advanced pilot, most likely with a instructor's or commercial rating.
{{User:Gunny01/UB/pilot-4}}
p-4This user is an expert pilot, probably flying for an Air Force or a major airline
{{User:Gunny01/UB/pilot-N}}
p-NThis user could outfly Chuck Yeager, the Red Baron and Eileen Collins all at once.
{{User:Gunny01/UB/pilot-Rec}}
p-RecThis user has a Recreational Pilot's Certifcate, or similar ultralight/LSA licence.
{{User:Gunny01/UB/land-0}}
em-0This user could not land a plane in an emergency.
{{User:Gunny01/UB/land-1}}
em-1This user could land a light aircraft in an emergency.
{{User:Gunny01/UB/land-2}}
em-2This user could land a multi-engined aircraft in an emergency.
{{User:Gunny01/UB/land-3}}
em-3This user could land a jet aircraft in an emergency.
{{User:Gunny01/UB/land-4}}
em-4This user could land a Boeing 747, an Airbus A380, a C-5 Galaxy or any other large aircraft you could care to name in an emergency.
{{User:Gunny01/UB/land-N}}
em-NThis user could land the space shuttle in an emergency.

Other

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Code Result
{{User:Gunny01/UB/AU/US}}
AU/US This user uses Australian English, but thinks American English often has better spellings and pronunciation that makes more sense.
{{User:Gunny01/UB/userboxcreed}}
 This is my userbox. There are many like it, but this one is mine.