With orders of $25 or more, Amazon offers the Coleman Color Changing LED Citronella Outdoor Scented Candle for $3.88 with free shipping. That's tied with our August mention and the lowest price we could find now by a buck. It burns up to 25 hours and purports to repel insects.

Note: This item is sold as part of Amazon's "Add-on program" and can only be purchased with an order of $25 or more.