For its newsletter subscribers only, EverydaySource offers the Camera Flash Diffuser With Rubber Ring bundled with a Lens Cleaning Pen for $7.99. Coupon code "S0907DXWC" knocks it to $6.09 and bags free shipping. That's tied with our mention from three weeks ago and $7 under the lowest total price we could find for similar items purchased separately elsewhere. This foldable diffuser includes a rubber ring to attach to the flash unit.