Back when I did avionics on F15's I rode in the back of a tanker (KC135/KC10) countless times. I can't recall which TDY we were coming back from but the pilot had scored one of those cardboard cutouts of the St Paulie beer girls and he had it behind his seat. So when he pulls up to get fuel it looks like some hot chic is looking over his shoulder holding a beer. Pretty sure it was not allowed but it happened.
During that stint I also got two rides in f15's... it was like a 90 minute roller coaster ride each time. Fucking awesome.