If you take the yellow insert out of the red "cap" assembly you can jam a NY Fat in there, turn it to the side and hold can so finger is going across red actuator. Highly suggest cutting stem to increase output but that's up to you. I got an idea for an adapter for other caps to do similar (I know, "just dont get that shit paint", I have a bunnnch of it sitting around as well as the good stuff) as I know a glow stick necklace/bracelet tube is a good size for most caps stems, and a pen tube fits in the same krylon insert hole we're talking about here. So see if i can jam a pen tube up a glow stick tube. (very short so less flex) will let yall know how it goes, but it's nice to be able to get a pretty decent flare with the krylon without it being a total pain in the ass.