There are lots of different uses for artificial flowers, to decorate clothing, wear in your hair and, I am sure you could come up with some other ideas. Here is a simple crocheted flower that would be easy to make a flower out of scrap yarn.
hdc= half double crochet
7 gm. scrap yarn
Size F (3.75mm) crochet hook
Start with an18 inch tail, Chain 38, turn
Sc in 2nd chain from the hook, (2ch, skip 1 ch, sc,) repeat until 18 total ch2 areas, turn.
(Each petal will be in a hole made by a chain two in precious row.)
Petals 1-2: (ss, ch1, 3hdc, ch1, ss)
Petals 3-4 : (ss, ch1, 5 hdc, ch1, ss)
Petals 5-6: (ss, ch1, 2hdc, 1dc, 2hdc, ch1, ss)
Petals 7-8: (ss, ch1, 1hdc, 3dc, 1hdc, ch1, ss)
Petals 9-10: (ss, ch2, 1hdc, 3dc, 1hdc, ch2, ss)
Petals 11-12: (ss, ch2, 5dc, ch2, ss)
Petals 13-15: (ss, ch2, 2dc, 1tc, 2dc, ch2, ss)
Petals 16-18: (ss, ch2, 1dc, 3tc, 1dc, ch2, ss)
Once all the petals are done, thread the tail string from the beginning onto a yarn needle. Start with the first (smallest) petal and working from the back, whip stitch each petal to the ones closest to the center, or in other words, whip the first one to the second one. The third one to the first one, the fourth on to the one it is laying on closest to the center.
Keep working until all 18 petals are together in a unit. When you are done, tie what is left of the thread on the needle to the yarn end from the end of the last petal.
Now take the safety pin and whip the back of the pin to the back of the flower. Again, tie a knot and cut off the ends. You may want to put a little glue on the last knot to keep it from untying. Done!
You can use the safety pin to attach it to whatever you want. Enjoy!