This is a list of objects that have one or more masked textures built in. Of course, you can apply a different texture or apply the texture and mask from these objects to another object, but this list should be useful when trying to find objects that already have a masked texture. Most mask files have the same name as the texture they are meant for except with an "m" added to the end. For example if you want a mask for the flame1 texture, try applying a mask named flame1m for starters.
The following special objects in this category are restricted for use only by citizens who have been given the "Special Objects" privilege by the world's caretaker: