"Dear Parent Please send your child to school dressed as the super-hero of their choice....."
Oh yes one of those frantic moments of putting together a costume with very short notice.
Cat-woman was the heroine of choice, costume sorted (black clothes, no problem), cat ears to be made:
Cat Ears Steps: I took a plain headband, measured out some black material,a rectangular piece, and wrapped it along the headband. I hand-stitched it together along the inside. Now for the ears - I cut out a square piece of black fabric, ironed on some interfacing to strengthen it, then cut out 4 ear shapes. I stitched 2 ear shapes together, interfacing on the inside for both pieces - I used an edging stitch on the sewing machine. The bottom edge of the ears was trimmed to match the shape of the headband, and I then hand-stitched the ears onto the headband. And cat ears were made.