Worsted yarn with large needles. (10 -13)
Cast on 7 st. leaving a long tail (6-8 inches)
Knit one row. Purl one row.
Row 3: K1, YO across, ending K1.
Row 4: Purl
Row 5: Repeat row 3.
Row 6: Purl
Row 7: Repeat row 3.
Row 8: Bind off in knitting.
Thread tail from cast on in tapestry needle. Run the needle through the cast on stitches and pull into a circle. Tie off. Sew up the edges of the flower. Weave in yarn ends.
If you felt them, they look like this:
If you make two, one with larger and a second with smaller needles, and layer them, they look like this:
I used size 13 for the red layer, and 10 1/2's for the pink and yellow layer.