Amazon has the 6-Park Paper Mate InkJoy Bright Gel Pens (Medium Point, 0.7mm) on sale for $6.99 - 10% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $5.59 with free shipping on $35+ or with Prime. 6 colors, work on both white and black paper.