F-111 - there's a few buried around the place in Australia; shouldn't be too hard to dig up, check the tyres, charge the batteries, fill the tanks, hop in and light the fuse!
Avro Vulcan - fortunately I'm old enough to have just seen one in the air very briefly at the time of the Maralinga test program - low and loud!
B-36 - now that would be something to stand in awe of (or horror). Six turning and four burning! Only seen in the film Strategic Air Command, and in a Youtube clip out there somewhere ....
Alas all nothing but memories now - we shall not see the likes of them again.