13Deals offers this Electric Bug Zapper Racket 2-Pack for $4.99 plus $1.99 for shipping. That's tied with our August mention and the lowest total price we could find for a 2-pack by $18. It allows you to electrically incinerate bugs by swatting them in mid air. Two AA batteries are required (not included). Deal ends August 26.
Note that they will ship in a random color.