Video: Artist uses chewing gum for pictures
When you finish chewing gum you either stick it behind your ear - like Veruca Salt from Willy Wonka - or put it in the bin.
But not if you're Ukranian artist Anna Sofia Matveyeva - because she uses it to make art.
She separates all her chewed gum into different colours and then sticks it on a canvas.
Her paintings can weigh up to 5kg and she's already given the gum treatment to Steve Jobs and Elton John.