Seriously, that was fantastic! If you have plans to do more of these, I have some suggestions:
Mercy with Operation
McCree with light gun
Reaper using razor wires and other sharp objects (for his edge AND for cutting himself because he's just so misunderstood by the establishment)
Pharah with Occulus (looks like her helmet)
Roadhog with a Sega Pro-bass fishing rod
Junkrat with little spiked wheels that when spun indicate a button press
Soldier76 with a hololens or Geordi's visor
Ana with actual syringes (pushing them in and out of various holes indicates button presses)
Genji with a wiimote sword
Hanzo with a crossbow/longbow (like those ones from the Wii)
Widowmaker with those big fake butts you can purchase (smacking one = button press)
Mei with something related to ice (look, for this one....I got nothing)
Bastion with either a fully automated version or one of those drinking birds. In fact, the second one sounds more amazing. Would love to see you sitting behind a giant army of drinking birds, pressing them down to press buttons
Torbjorn with a wack-a-mole hammer
Tracer with a treadmill
Zarya with weights (not sure what to do for this either)
Zenyatta with various balls
Symmetra with lasers (maybe motion detecting ones?)