iEGrow via Amazon offers its iEGrow Portable USB Mini Fan in Black for $13.99. Coupon code "8Y2SC46J" drops it to $8.99. Plus, Prime members bag free shipping. That's a buck under our April mention and the lowest price we could find by $9. This foldable fan features adjustable speeds, a hanger, metal clip, and rechargeable Li-ion battery with up to 11 hours of run-time per charge (on lowest speed). Deal ends May 26.