Code:
function Create(self)
self.particleTable = {"Pixel Red", "Pixel Green", "Pixel Blue"};
end
function Update(self)
-- Spawning requirements or something, w/e you're doing
local particleFX = CreateMOPixel(Math.ceil(Math.random()*#self.particleTable));
particleFX.Pos = self.Pos -- Or whatever position you want to spawn it
MovableMan:AddParticle(particleFX);
--
end