Monster Vape Juice offers a great flavor called “Custard Blackberry,” which combines the creamy richness of custard with the tartness and juiciness of blackberries. Fruity vapes with a mild aftertaste? You’ll love this one. The blackberry flavor livens up the whole flavor, and the custard base makes it smooth and creamy. Vape juice that mimics the flavor of a sweet fruit treat is a popular choice.