About this 3D model

I always wanted to create a liquid soap container that was not store bought. I bought some Erleynmeyer flasks and wanted to put a korktop. But korks are quite expensive to get and sometimes their size isnt ideal. So I thought that I can design one. So here we are, two different tops, each in two varieties. one whole and one with a pump hole for the liquid soap pump. the first is designed with a bottom diameter 31mm (a little bigger to accont for the ABS shrinking) and a top diameter of 36mm so it fits every flask with the same characteristics The second one has a bottom diameter of 22mm and a top of 35mm I also posted the freecad file so anyone can change the sizes. in the freecad file I also have a stand for the shperical flasks.