I've seen quite a few pics and video of aircraft that have collided, including pictures from a client that was boom operator of a KC that had collided with a b52 off the Ca. coast, these pics were unauthorized and illegal for him to have since the B was carrying nukes and it was cold war days but the vertical stab was really smashed up on the B.
pics and video of several types of ac , including but not limited to, p38, p51, assorted ww2 bombers, f6, and many jets. You can see footage of recent years incidents of jet ac colliding with one being unflyable and the other returning to base.
Remember the early G.Bush days? the incident with that crazy Chicom F pilot?