Throughout the past 16 years the designer has been leaving his mark in very temporary street-art fashion by peeing on walls, continuously improving his technique.
As the collection of eagles have grown to 150 eagles on Instagram, Theo has also gained attention and praise from various media. In 2013 he was interviewed for the Dutch Vice. This is when the term "wildplaskunstenaar" was coined.
Video in Dutch:
His interest in urine, however, is not exclusive to the eagles. Theo is also working on designing a modern, separating toilet. He is looking to create a toilet that can extract the nitrates and phosphate from urine - substances that are hard to remove from wastewater. Theo has named the design "Piet" and May 2015 he's going to Chicago for a month to improve and further develop the project.