A plain bag pops with pizzazz when you add decorative details cut from felted wool -- made by shrinking old sweaters until the wool is thick and ravel-proof.
To felt the wool, wash the sweaters in hot water and dry them on high heat. Repeat, if necessary, so that the fabric's weave is tight enough to be cut without fraying.
Cut butterflies and hearts from the felted wool (you can use our templates).
With embroidery floss, use a running stitch to sew the pieces to the bag as shown, then continue the stitching to make antennae. If needed, add a dot of fabric glue to the back of the wings and press them onto the bag to keep them from flopping.