Here's some older things I've done...
This first one was a super quickie (and ugly) job done to rib an acquaintance who drove Eagles with the 48th FW.
Here's another ugly one done very quickly during a PM session to rib a friend who's a fan of the Bic Jet... he didn't appreciate it very much... LOL
This is one of the first photochops I ever did... it's poorly done, but it was fun. The fella in the cockpit is/was a wrench monkey on Danish F-16s.
This one isn't aviation-related... 'twas just a bit of fun using photos of a couple friends...
Another very early one... and fairly simple... the N-3PB never carried US markings, so I had to remedy that right-quick...
I used to run an aircraft ID quiz on a number of forums, and this was done as an April Fool's joke one year. It's a composite using elements from images of three different aircraft.
I may or may not have posted this here before. It's just a little more goofiness using a NASA photo, a snap of a friend's model, a couple'a flying telephone poles, and Joe Cool...