I'm pleasantly surprised by this suit. But I don't recognise the veins, they're just (thick) seams and fabric creases (near the armpit) to me. Take a look at this lightened picture for better detail.
Too bad nothing like it will ever come back. BUT, here is an hour-long (all 3 parts) interview and clips with some of the people from Animaniacs by Doug Walker aka the Nostalgia Critic. It's full of anecdotes, and a blast to watch. :)
"All Around The World", Size L, Dark Chocolate
But I don't recognise the veins, they're just (thick) seams and fabric creases (near the armpit) to me. Take a look at this lightened picture for better detail.