GearXS offers the Star Master LED Color Changing Star Projector for $5.99. Coupon code "DN-1" drops it to $4.99. With free shipping, that's tied with our February mention and the lowest total price we could find by a buck, except for the mention below. It lights up the ceiling in a starlight pattern. Deal ends May 3.
A close price: MarsWell via Amazon offers it for $5.37 with free shipping.