A bottle opener, ideal for these hot days. I made a bottle opener which opens the bottle in a different way than a usual bottle opener or the 3D printed one with the coin. This bottle opener just needs to be put on the cap and pushed downwards to the neck of the bottle. I printed mine with my homemade printer. I sliced the .stl file with Slic3r, layer height is 0.2mm and 90% honeycomb infill to prevent bending. I recommend using ABS filament.