Getting a model to have more than one texture

[PAVGN]

I need help with getting a model to have more than one texture. I'm trying to make the presents from Banjo-Kazooie as an item hack for the gift boxes. I want to replace all of the box models with the gift box model so people aren't forced to use only one at a time. I did all the renaming I thought I had to do, And in Brawlbox the boxes each have their own texture like they're supposed to. But in the game the boxes appear all glitchy. Only once have I seen a box appear textured correctly. So how can I replace all of the box models with the gift box model and have each one have It's own texture in-game?

[Aisuru Senka]

Just make different files. I think that's it...

[Quanno]

Can you give some pictures of the messed up textures? When did it work properly and when didn't it?

[PAVGN]

Can you give some pictures of the messed up textures? When did it work properly and when didn't it?

It glitches almost everytime.

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What It looks like seems to depend on what's loaded, And It copies the textures of a nearby character.

The one time It appeared correctly:

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And everytime It appeared It only had that texture, It didn't use the others I had made.