https://www.amazon.com/dp/B00006IFH...09210924930fec6040INT&smid=ATVPDKIKX0DER&th=1 12-Count Sharpie Fine Tip Permanent Markers (Black) on sale for $5 - $0.25 (5%) off when you check out via Subscribe & Save = $4.75. Shipping is free w/ Prime or on $35+ orders.