14. The Arrested Development Stair Chair
Probably the most recent Easter Egg to be uncovered, this Arrested Development gag was spotted initially on Reddit before everyone else claimed to have spotted it subsequently.
It's brilliant, ludicrous and hilarious to think of the connotations: does the appearance of the Bluth stair chair from Arrested Development suggest a shared universe with the MCU. Will they be the next recruits for the Avengers?
This is obviously a nod back to the Russos' work directing several episodes of AD on its initial run, including the pilot.