In 2015 Yaku started creating original characters in the form of stickers and sending them around the world. The most known character from this time is Yeko - a yellow crocodile based creature. Yaku has spent three years pasting his characters wherever he goes, and they have reached as far as Phoenix, New York, San Francisco, Fayetteville, Barcelona, Cologne, Dusseldorf, Dortmund, Moscow, Florence, Venice, London and more.

Yaku has collaborated with other sticker artists over the years, and turned their works into more sticker designs that keep circulating. Including Anxti, El Coco Poland, Flaaf, Goatbunny, Justin Couturier/Turbo Glass, Zero Productivity, Harvjazz, HeDreamtMars, Jonteotte, Javon The Unique, Nite Owl, Neverasir, Sleepisfamous, Regelverk, Roc, Smile and Woorm.

Enamel Pins, T shirts, and Original Artworks were made as the project continued to evolve.