Cutter CitroGuard HG-95783 17-Ounce Insect Repellent Bucket Candle for $4.99. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. It is made with citronella oil, burns up to 30 hours, and repels mosquitoes & other flying insects. Most places have it for about $6.