Which material can be used to make bulged buttons? What is the corresponding thickness? What is the general size of the bulged buttons?

Now PET material can be supported to make bulged buttons, and the thicknesses are 0.125mm and 0.2mm. Normally, the height of a bulged button is around 0.45mm ( within 0.3 mm ~ 0.6 mm), and the diameter is 6 mm~40 mm.