A simple 10ml cup I designed for getting required parts of for epoxy, XTC-3D, silicone and other things that are measured by volume. So instead of buying disposable measuring cups that are huge and cost some money, I decided to make this and I used the Solutech "Clear" natural PLA to give it translucent properties so I could see through it from the side. The cup holds just over 10ml as you want some room so it won't spill what ever you put in it. (I do not encourage using this for any food related products as FDM printing isn't usually food safe.)
None, except if running in vase mode you can add a thin layer of XTC-3D on the inside and outside of the print to make it almost transparent.