Stop the neopetsphobia people |: the fact that a virtual pets site has the option of making your pets look zombie-like shouldn't be qualified of 'OMG NEOPETS D:!!'. Then, the fact that it's a virtual pets site with /virtual pets/, already makes it like neopets. And it just makes no sense at all.
I like the idea of a rainbow dye kit. And I'd say it would be great if it could be used for CS pets ;3
Not really sure about the zombie one, though.
I would like to add something to the suggestion. What about a Neon Dye Kit and a Rainbow Dye Kit? The neon would be clack with bright, neon colours like green, pink, orange, etc; and the rainbow could be white with rainbow markings :3