The Nickelodeon Gak Colour Mixer lets you turn Gak colours into even wackier Gak colour combinations. Just attach any two colours of Gak to the mixer arms, crank the handle and watch your two colours turn into a new wackier Gak colour! Crank It! Twist it! Spin it! and Mix it! - The Nickelodeon Gak Colour Mixer is one of the wackiest, Gakiest products around! GAK IS BACK!