On Friday, February 10, 2023, an event called "STEM Day in Cankarica" ​​was organized at Ivan Cankar Elementary School in Zagreb. Along with representatives of organizations such as: Croatian Association of Technical Culture, Mobilni ZEZ, STEM educators, Robocacija, the POI Institute had the opportunity to participate in the BIOPLAnet project in an extremely dynamic, busy atmosphere of interested students, their professors and the general public. The bicycle, a plastic shredder, once again aroused great interest and people waited in line to try the magic of shredding plastic in an unusual way.