I've already made a number of smoke generators with organic dye and potassium chlorate for amusement value during summer displays where you start almost before it's fully dark.
I've recently seen some very impressive coloured shells, salutes really and I would love to know how they do it. I've also heard about stars in shells that generate coloured smoke rather than light.
Does anyone have any compositions? I was thinking about trying a basic coloured smoke mix but forming it into stars. Not sure about how you make a blue smoke salute though!