This is one of the reasons I went with a 3D pen rather than a 3D printer. In order to do this on a printer, you have to either use support material then melt it away or you build it up with break away support and you have to cut it away, then finish with filing and sanding. It's also thin by 3D printing standards. I used two layers to keep its flexibility. But if I'd used three layers, it'd be much stronger. For my use, it'll be strong enough.
There it is. It hold the handles of the grocery store bags in the trash can. My dad actually used to bend wire hangers to do this, so I didn't invent it. But I did it in a new way!