Hello Darko,
I don’t know exactly what these cones are but it sounds like the best idea would be to get a model maker to prep them then you could get exactly size etc.. that you are looking for.
There are a few propmen who specialise in beer commercials such as Ray Spencer +44 (0)7860 441022
He travels all over Europe for them and maybe could supply the cones himself or point you in the right direction.?
Hope that’s some help. Alternatively maybe a brewery could supply in which case there must be one near you somewhere.
If you need further help please feel free to contact me through this forum.
Goodluck.
Jane
Jane Harris (Prop buyer / stylist – London )