Magic Pens by Wham-O Price:  $11.99 (as of 02/01/2020 10:53 PST- Details)

The original and amazing Magic Pens by Wham-O that change and erase color like magic!
Transform regular drawings into magical works of art.
Kit includes 20 markers including 9 Color-Changing Pens; 9 Eraser Pens; and 2 Magic White Pens. Also, included are Magic Stencils, a Storage Stand and a bonus Blow Pen attachment.