My modifications on a knitted lace edging found on knittingfool.com. This will make a slightly sleeker leaf shape. Instead of k3tog, you may knit a mirror of a "sl1, k2 tog, psso" by doing "ssk, pass stitch back to left needle, pass left st over right st, slip stitch to right needle" (not supported in Stitchmaps). Row 0 is a foundation row and is not repeated.
Shown with a cast-on count of 16 stitches.