Polymers are essential materials in everyday life, with applications ranging from medical devices to packaging and most consumer goods, making our world barely imaginable without them. However, the high volume of polymer production requires us to move towards sustainable non-fossil alternatives. The masses of polymer waste ending up in landfills or as microplastics in the ocean 2 also make it necessary to transition from a linear to a circular polymer economy. This can be achieved by designing materials with so-called end-of-life options such as recycling, upcycling or reprocessing in mind. Further, green chemistry principles must be observed when creating sustainable polymers to not only obtain a sustainable end-product but to make the entire process as environmentally friendly as possible. This means avoiding the use of toxic chemicals where possible, using widely available feedstocks and limiting waste generation and high energy usages. While significant efforts have been done in the search of bio-based monomers, the implementation of both green chemistry principles and end-of-life fates is still in its infancy. In recent years, new fabrication techniques have emerged alongside new materials. One such technique, which can be described as inherently sustainable, is additive manufacturing, or 3D printing. It produces less waste and consumes less energy than conventional production methods.