Wondrous Items and class abilities

[Lockgo]

I look over the rules for magic creation but I can't find anything for actual class ability items like the Monk robe or the ring of evasion. Are there any actual rules for class ability enhancing items, or items that just give you class abilities. Like an item that could give you an animal companion?

[blackbloodtroll]

Currently, there are no rules for items that replicate class abilities. DM discretion is really all you have.