Steve Rogers becoming a famous artist in the modern world, but not in the way anyone expected:

• Sketching Bucky and Sam and Natasha on the placemat at a restaurant; the waitress figures out who they are from Sam’s credit card and sells the drawing on ebay
  
• Drawing little monsters on kid’s casts at the Children’s Hospital, until Natasha finds a ‘Florida Man’ article about some idiot who tried to break his arm on purpose
• Getting really hammered with Thor and tagging the side of Tony’s newest building with a DayGlo yellow caricature of the team – fifty stories up
• Doing commissions for charity once and then never again, after someone seriously offers to pay him $200 for a six-stroke cat doodle 
• (He does a nice watercolor of their childhood pet for free, and donates $1000 of his own money back to the charity)
• Sending dumb doodles to his fans on Twitter; someone actually has one tattooed (insp. x) 

+1 

• Secretly starting a Tumblr and posting whatever he wants, when he wants, as ‘fanart’
  
• His most popular tag is ‘nsfw avengers’