Back in the 80's they wanted a B-47 for the museum at Castle AFB, CA. So a crew went down to MASDC at DM, dug out the old B-47 manuals, picked out a B-47 in the boneyard, got it in flying condition and flew it to Castle AFB. That must have been fun, having the only flying B-47 to play with for a few hours.
Would have be tempting to do a touch and go at a base en-route and have people saying, "Was that a....?"
When I was at Tinker AFB in the mid-70's we were the ALC for KC-97's. In addition to usual air refueling duties they were used to haul heating oil to Buffalo one especially bad winter; with their reversing props they could stop on ice covered runways while KC-135A's could not. Then one day the KC-97 structures guy got a call. At one base they had found serious corrosion at the MLG attach points. He called the other bases, had them look, and they reported the same thing. And that was the end of the KC-97 fleet.. They flew them all to MASDC at DM.