If you arent sure about getting real flowers, fake flowers, or silk flowers, I've found 2 great websites for you to buy silk flowers for cheap. The first site makes the bouquets, crosages, boutinneres, etc. for you, you just pay for them. The 2nd is where you can buy the silk flowers in bulk if you plan to DIY.
Here they are:
I'm getting all of my flowers for myself, BMs/MOH, groom/groomsmen, and reception/ceremony plus the flower girl basket from the Bride's Bouquet. I'm going to get the flower girl petals from Silk Flowers b/c you get more for a cheaper rate.
You can also get flower scent from the Bride's Bouquet that'll make the silk flowers smell like the real thing AND they look like the real thing.
Hope you ladies enjoy these sites as much as I do!