Electric Seam Ripper
$17.99
Rip out those sewing mistakes in a jiffy! To hold the seam taut, pin one side of the seam to a surface, and hold the other side with your hand. Carefully rip through your stitches with the seam ripper.
Works on straight stitch and serged seams, and embroidery too! Runs on 1 AA battery, not included