Joycover Invisible Ink Pen with UV Light for Kids, Party Favors for Kids 4-6 8-12, 24PCS Spy Pen Classroom Prizes School Supplies, Birthday Christmas Gift Toys Goody Bag Stuffers for Boys Girls 24PCS Invisible Ink Pen is up for auction in Toys & Games. The current bid is $13.50, 29% below the $19.00 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.