Nice collection you have there! The Park Tool is particularly interesting.
My OPTs. Steel Life Axem 4.0 and Leatherman Piranha. [ Quoting of attachment images from other messages is not allowed ] Piranha is part of my EDC bag, i have sharpened few times my Piranha head and cause of that it has rounded bit, also i have broked that rubber thing that holds bit. First when i got Axem 4.0, i made handle for it where i could use it as axe, saw and short spear, after that it did act as my most expensive ice scraper, then i carried on it on EDC bag until it broked one of my pouches cause i made it too sharp. After that it has stayed on shelf as reminder not to get anymore those kind OPTs.