This post from Girl Loves Glam was a great step-by-step guide for making fabric flowers. You only need a few supplies, most of which you likely have on hand – fabric, a hot glue gun, some type of circle to trace, a pen or marker, scissors, and a straight pin (optional).
I made two sizes of flowers and used three different fabrics. For the bigger flower, I used a yellow fabric and burlap. For the smaller flowers, I used the same yellow fabric and a white fabric. These flowers were used to add a little interest to the chicken wire frame I made (post coming soon – UPDATE: Here it is.).
Total cost for all three flowers was less than $1.00 I would say. The white and yellow fabric was $1.00 per yard, the burlap was $2.97ish per yard, and I barely used any of those fabrics. I used probably one glue stick or less – not sure how much that would cost.