It's a long time i'm trying to render the Kirby crackle effect, by hand or with a (digital) brush. It's not simple as it seems! Studing this issue, i created a set of brushes for Manga Studio 5, that have some slight differences one from another, except for the "Sqr K" series that is a little more different.
In the "K" series (without any other name except "stroke" or "crackle") the spots are almost perfectly circular. In the "Raw K" series the spots are more "handmade". The "X-Raw K" series has a more enhanced handmade effect. Finally, in the "Sqr K" series the spots are squares; i made this series for fun, to try to see how it could be having square spots in a Kirby crackle...
I mean the "stroke" brushes most suited for fillings and the "crackle" brushes most suited for energy beams, explosions or something (if you don't know what I'm talking about please search on the internet for "Kirby crackle"!). Numbers refer just to the order of creation, and since brushes descend one from another, I kept them.
I hope you like these brushes, feel free to use them. If so, remember me in your drawing credits
Matt
Screenshot :