We took our interactive workshop to this year's European Researchers' Night on September 26, 2025, in Brčko, drawing 80 children for a hands-on eco-tech session. Led by environmental educator Aleksandar Pajkanovic from ReX TeX team, while introducing new colleagues, the event centered on grinding recycled plastics in a mill and 3D printing them into custom toys. Participants not only learned about sustainable materials but also took home more than 50 printed toys, making science feel practical and fun through direct creation and touch.