GoodHead - Tingle Drops. This set of oral sex enhancers intensify blow jobs by tingling, teasing, and sweetening the entire package. Our GoodHead Tingle Drops come packaged in easy-to-use 1 ounce drip bottles and three mouthwatering flavors: Strawberry, Green Apple, and Watermelon. You will love the user-friendly package and delicious fruit flavors that effectively provide the perfect blend of great taste and delightful sensations. A couple drops are all you need! Features:oral-sex enhancing drops. Three Delicious Flavors: Strawberry, Green Apple and Watermelon. Includes Three Distinct 1 ounce Tubes. Heightens Sensations During Fellatio. Proudly made in the USA by Doc Johnson Novelties.