Alaria's Saddle Blanket (3.5e Equipment)
From D&D Wiki
Alaria's Saddle Blanket: This finely crafted blanket is woven from exotic threads and has a seemingly endless jumble of animals pictured, from mammals to reptiles and even dire animals and dinosaurs. This horse blanket allows the mounts owner to polymorph the mount into one of three preset forms at a time, for a total of seven minutes per form per day. The forms that can be chosen must be of the animal type and can have a maximum CR of 4. Animal Companions whose owners, typically Rangers, druids and paladins, use this on them retain their bonuses from being an animal companion or mount.
The blanket has three preset forms one small form, one medium form, and one large form. Forms may be chosen that are smaller than the preset limit but not larger. For example, the owner could preset the blanket to two small and one large shape but not to one small and two large shapes. Typical presets are a hawk, wolf, and tiger. You can’t cause a subject to assume a form smaller than Fine, nor can you cause a subject to assume an incorporeal or gaseous form. The subject’s creature type and subtype (if any) change to match the new form. It takes twenty four hours for someone with the Craft Wondrous Item feat to change a preset.
Upon changing, the subject regains lost hit points as if it had rested for a night (though this healing does not restore temporary ability damage and provide other benefits of resting; changing back does not heal the subject further). If slain, the subject reverts to its original form, though it remains dead.
The subject gains the Strength, Dexterity, and Constitution scores of the new form but retains its own Intelligence, Wisdom, and Charisma scores. It also gains all extraordinary special attacks possessed by the form but does not gain the extraordinary special qualities possessed by the new form or any supernatural or spell-like abilities.