No one said it as spot on as the guy from the Crunchie commercial, 'Change the colour of your day' and that's exactly what artist Kristi Sword has done. Her spontaneous street art, titled 'intervention' can be found scattered around New York, from bright stickers lining a phone booth to teeny weeny hundreds and thousands filling in cracks in the pavement.
See more of Kristi Sword's work
here.