I cut several strips of ribbons (I did 9" each) and sewed them in a loop. Then I machine-sewed the loops together to form the flower. I added a pin back so it removable (for laundering or wearing on a different garment) and then attached a complementary fabric-covered button. Voila!
However, I think the next time I'll make the strips shorter. It's a little floppy when upright. (Wired ribbon might work nicely, too.)
*On Saturday morning Carter wanted desperately to give me a birthday present. He ran into his room and came out with a "wrapped" gift. When I opened it, I was puzzled. I pondered it for a moment, trying to figure out why he was giving me this thing as a gift. I guess he could see the look in my eyes and quickly said, "It's a stress ball." And that's when I laughed. Hard. I said, "Carter! It's not a stress ball. It's half of a clown's nose!" We laughed quite a bit over that one. It's surely one gift I hope I never forget.