Since I was a little kid I always loved aircraft and that carried over to my time in the Corps.
On the military side of the house....
KC-130 F/R having been assigned to VMGR's 152, 252 and 352 as a 6086
Now during my off duty time and having a backseat license, over the years I was able to catch hops among various fixed and rotor units willing to give rides. One time I came Sooooo close to an F-4 hop but the decision was for squadron personnel only.
TC-4C NAVY @ NAS Oceana The working A-6 cockpit in the back was an amazing sight!
T-28 @ MCAS K-Bay w/stick time. After T/O the Col let me fly it from Oahu to the Big Island.
TA-4J w/ VMAT-203 @ MCAS Cherry Pt. w/stick time. 1st hop was an ACM, it was an E-ticket ride
TA-4J w/ VC-12 @ NAS Oceana w/stick time. I got in 1-2 hops per day the last 2 week I was there.
OV-10A caught a hop from Bogue Field into Cherry Pt.
P-3A @ NAS Memphis
CH-46D @ K-Bay
CH-53D @ K-Bay
UH-1 @ K-Bay
KC-135 SAC got a hop from AFB Hickham to Offutt and back.
C-141's
KC-30 E/R and the CASA CN 235 with the RSAF as a contractor.
For the civilian birds I had to pay for a ride....
Cessna 150's w/stick time, B-707, 727, 737, 747, 757.767. DC-8, 9, 10, L-1011, Corvair 340, 880, 890. YS-11 most of the Airbuses and ATR-72's.