It's not easy being a graffiti artist. If you're not avoiding arrest by the local transport police, then you're probably lugging around a hefty backpack full of spray cans to your next tagging spot.

Italian artist Mister Solo's new invention could make things a little easier. He's created an all-in-one spray can, which lets a person select between three different colours – cyan, magenta and yellow – to paint with. It works a bit like those multi-coloured pens that people had as a child, which wrote in different coloured inks depending on what lever was pressed down on the side.

The device is still a prototype for now, but should it go into production, there will certainly be a few pleased graffiti artists.