Also, I found some more shipping tags to update:
shiningvelvet, Shining Armor + Twilight Velvet
velvetshield, for Gleaming Shield + Velvet Dusk (i.e., the R63 version of the above)*
shining light, Shining Armor + Night Light
twinight, Twilight Sparkle + Night Light
velvet sparkle, Twilight Velvet + Twilight Sparkle
velvet cadance, Twilight Velvet + Cadance
nightdance, Night Light + Cadance
twidance, Twilight Sparkle + Cadance (kind of surprised I haven't previously reported this)
I think that's basically all of the possible permutations of the Sparkle family, save shiningsparkle (since it's already properly handled)
* Should this be a separate tag, or just handled by "shiningvelvet, rule 63" or some such?