Can devotees sell products made by killing flowers?

From: varun

i have listen plucking a flower is a sin.but we offer to krishna and i want to sale some products like sharbat made from rose and some other products also which contain flowers.flowers are also used in medicines which we normally eat  for simple problems nothing serious.flowers are in many products like soaps,toothpaste,preservatives,soyabeanoiletc.pls tell me   about flowers from books plz and also tell me can i sell these products or not.

prabhupada said to use every thing in krishna service. but their are things like we use photo paper it is made from animals.can we sell these photo papers or do bussiness of this for krishna,