I purchased the Ikea RESÖ Children's Picnic Table for my kids and we found this great umbrella that matched it perfectly. Unfortunately, the table did not come with a hole. So I hopped onto TinkerCad and threw together a quick design. You don't have to print it with the Fuzzy Walls, but I enjoyed how it came out with them. I used a cheap hole saw bit that came in a set from Home Depot, but you can grab a set for cheap on AliExpress or Amazon. The size hole saw I used was 1 ½".
Printed in PETG (even though I had planned to use ASA. PETG has been holding up great so far.), 0.16mm High Quality preset, Arachne wall generator, 3 walls, 30% Gyroid infill.
Enjoy!