I created this to attach to the side of my house (where there isn't guttering) to hang our Christmas lights up (Merry Christmas by the way!). This is an alternative of my taller hanger with 2 screw holes. The picture shows the various sides of the hanger.
It has a single screw hole. The hole is about 2mm wide and countersunk. These are the screws I used, they are super cheap at £3.35 for 200 of them - https://amzn.to/39eSs7K ( Pozi wood screws 3.0 X 15mm pack of 200 )
I've printed these and they come off great. You can set the printer to print individual objects and I've found you can fit 8 on a single bed.
I put the number of perimeters up to 10, so that the entire thing is basically perimeters from top to bottom. This increases the overall strength of the hanger.
I used Prusa's Prusament PETG, although you might want to use a filament that matches the side of your house so you can leave them up all year round.
The author hasn't provided the model origin yet.