Hello again
I've been trying to figure out original missile models without success for quite some time now, guess it's harder than it seems at first. ^_^
I mean, giving you some lame ass magical glow thingie won't be very hopeful as you can probably figure that out yourself in less than a minute. I've always found myself looking for alternate arrow models (searing arrows, nature arrows, water arrows etc. maybe even flaming spears or something similar), however I argue with myself telling me that such a projectile would be below your level, both creative and advanced-wise.
Maybe you'd like to make something build on the Blizzard/Starfall concept again, just like your sparkling bolt rain, as I find such edits very cool and inspiring.
I'm afraid this vague writing is all I can come up with at the moment. Hope you get some ideas yourself as well. ^_^