Ok, yeah, it's 4 years gone since Thundercut started modifying walk/don't walk signs, but I still think this stuff is super cool.
From NY Mag:
Who is altering the WALK signs of downtown New York? A young couple from Brooklyn who go by the name Thundercut. One’s a graphic designer, the other makes legit signs by day. Their nocturnal work requires a steady hand with the X-Acto blade and sturdy shoulders to sit on. One half of Thundercut recalls the inspiration for the project: “One day I noticed a crosswalk sign which had broken off and was hanging at eye level. I started thinking about the really generic, masculine ‘walker,’ and thought it would be funny if at least one of these clunky pictos was wearing a skirt.”