I cut off the bottom from a standard 2L bottle and fixed the printed cap inside it with 2-sided tape. I bent a double hook from a piece of electric wire of +/-8cm and put it through the lid of the bottle, in which I drilled a small hole. (the second hook was only bent after putting the wire through the hole) When I change the net of bird food, I slide the net in the bottle. I unscrew the lid and catch the net with the hook, then I screw the lid back on: ready. No support needed I designed it to the print limits of UM2, but needed to downscale the model to 98% in order to print it.