Finished with Invisalign and Now I Need Veneers. How This Should Be Performed?

What's the procedure for making veneers after Invisalign (and before getting retainers-I must have my trays on all the time while waiting for the permanent veneers). I can not see how temporary veneers can be made so that my teeth can still fit in the trays the 2 weeks while waiting for the real venners.In my case only very very little enamel must be removed and I don't know how such fine temp veneers can be produced so to fit in the trays. I want to know what is the procedure in such cases