This is a spider web attachment for https://www.printables.com/model/218071-lego-wreath, to go with https://www.thingiverse.com/thing:6746100 (or my remix: https://www.printables.com/model/1016841-spider-for-lego-wreath).
Print it upside-down (visible side against the bed), no support needed. I used white ASA to be UV-resistant and prevent yellowing outdoor, but any material would work.
The fit on the wreath should be tight. If it doesn't fit at all, try scaling up 1%.
This was designed with onshape: onshape link.
The author marked this model as their own original creation.