Shop › Zero Productivity Halloween Collab. Pack (2 per order) Image 1 of 3 Image 2 of 3 Image 3 of 3 Zero Productivity Halloween Collab. Pack (2 per order) $7.00 2 Vinyl Stickers, one of each. A collaboration with artist Zero Productivity. Quantity: Add To Cart Added! 2 Vinyl Stickers, one of each. A collaboration with artist Zero Productivity.