Handlebar End Hook
Nothing has changed since primordial humans lived on earth. Once hunter-gatherers carried their prey back home... Nowadays you have to survive in the urban jungle by transporting your stuff all the way from the supermarket. Riding a bike with shopping bags is often a thrilling and dangerous experience. It's like moving through a furious rhino herd. With this "Handlebar End Hook" you can mount your bags on your handlebar so it won't slip away. To be honest, if you are carrying heavy bags, balance might be still very unsteady... so ride carefully and don't get hit by cars, buses or rhinos!
In addition to the 3d printed parts, you need a screw and a bolt to mount the "Handlebar End Hook". It should fit on most 22 mm handlebars. The inside diameter has to be 19.0 up to 20.5 mm. You should use a flexible material to print it.