So we all love Vivillon, right? And the gimmick it has?

Well let's say the gimmick sticks, and henceforth, every generation introduces one, maybe even two Pokémon that have a ton of different patterns.

What kind of Pokémon would you like to see with this gimmick? Should it stick to just butterflies, or should it become more widespread to anything? Should it stick to being location-based, or should other factors be involved?

For example, here are some ideas I've come up with:

>jewel beetle based off of the jewel of the OT's birth stone (all 3DSes have its owner's birthday registered)
>painted turtle with different shell designs based on location (designs would actually be based on the location, and the shell would be like a canvas)
>rhinoceros beetle with a horn that varies in shape and a shell that varies in color to match the shape (trident horn and blue shell, heart horn and pink shell, etc. - design might be based on what the OT's "favorite color" selected in the mii program is)
>a tiger that actually does change its stripes (maybe some stripes would be in different colors or designs or something like that)

Collecting stuff like this could be pretty fun, right?

What kind of Pokémon like that would you like to collect, /vp/?