Item 47 is probably the most complete Marvel One-Shot as a stand-alone entity, unfortunate that it never payed off in the MCU at large in the way that you might hope.

Final rating:★★★½ - I really liked it. Would strongly recommend you give it your time.

Complete enough to be a short film all on its own, we get a humourous, if mildly gritty, glimpse of what the events of Avengers Assemble left for S.H.I.E.L.D. to clean up. Found as a bonus feature on that movie's disc, and among the collected One-Shots on the bonus disc in the Phase 1 box set.