Yes. There are generally two ways to do this. If you happen to have a power drill, you can use it to drill a hole into any normal incense cone to turn it into a backflow cone. I know this topic is too long but people want to know how we can do. for this purpose, I share with you a website https://www.incenseocean.com/ where you can backflow incense cones as well you will get a complete guideline.
