Spider web coasters:
https://www.printables.com/model/987815-spider-web-coaster
Web without spider:
https://www.printables.com/model/987779-spider-web-doorframe-decoration
Inner doorframe version:
https://www.printables.com/model/997094-spider-web-inner-doorframe-decoration-with-hanging
Spider Model:
https://www.printables.com/model/596939-ibanez-spider/files
Spider web coasters:
https://www.printables.com/model/987815-spider-web-coaster
The author remixed this model.
Added a little spider hanging off the web.