I'm kind of a DIY-er, and I fully intent on buying wholesale flowers and doing all my bouquets and other flower-related things on my own. I'm having a hard time figuring out how many stems I will need per bouquet, though. If I want a 10-ish inch bouquet for me and 6-ish inch ones for my bridesmaids, how many stems should I include if I use gerber daisies?