Coaster with Swappable Inserts

🧵 Coaster with Swappable InsertsDo you love combining function with creativity and perhaps a touch of nostalgia? These customizable coasters let you personalize your table with vintage charm, seasonal flair, or meaningful artwork – all protected behind clear acrylic.🧩 How It WorksEach coaster is made up of three parts:A 3D printed ring frame with internal threadsA 100 mm (3.94 inch) round acrylic disc, 0.7–1 mm thick (0.028–0.039 inch) – this is your “glass”A 3D printed backplate that screws securely into the frameTo assemble:Place the frame with the opening facing upDrop in the clear disc (available here and probably lots of other places)Add your decorative insert – a napkin, embroidery, drawing, photo, or print – with the visible side downCarefully screw on the backplate using the included 3D printed tool🖼️ The photos show the coaster assembled with a retro "Irma Kaffe" napkin insert – a lovely nod to Danish coffee nostalgia!Note: Be mindful when screwing the backplate int