FlexTronCrafter via Amazon offers Prime members the FlexBrains LED USB Mouse, model no. FBWMBLK01, for $24.99. Coupon code "L24ZII5Y" drops it to $14.99. With free shipping, that's $45 off list and the lowest price we could find. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $8.20.) It features 3,200 DPI tracking and seven color-changing LED lights.