Seal and window retainer installation tool used for battle damage repairs for a military Chinook helicopter,



SEP 420 by skipskip, on Flickr

That's fairly specialized..!

That top one looks like it would help get the locking rubber back into the slot in the windshield gasket on a chevy truck I once drove.   Watched a lot of Chinooks fly over me, but never got to ride on one.  Designed in the 60s and still flying.