This is my wallmount solution for IKEA HEAT coaster. Please messure your pads before printing because these in the photo aren´t acutally 19cm (expectet diameter at ikea.com). The dimensions from my HEAT coaster are approximately 185 x 11 mm.
For mounting you can use a common 90° countersunk screw :)
fuer3Korkscheiben.stl | 114.0KB |