Bird Feeders Bird Houses

Is dryer lint safe to use in home-made Bird Feeders / houses?
I was reading through some green articles a while back and saw that you can make a bird feeder or house with a milk carton.
The photos in the article had the homemade feeders/houses lined with lint from the dryer.
I know that lint breaks up very easily and is made of tiny foreign particles…is it possible that an animal could breathe the particles in and sustain an internal injury of some kind?
I know that this would be an excellent use for leftover lint, since all it does is pile up, but I don’t want to cause any animals a lung infection or anything…can’t have that on my conscience.
Any info? Thank you.
I was wondering if it would be safe for the birds to
Last line is a typo…tried to edit, but can’t seem to.
I dunno… There is a fluorescent light by my dryer and it is easy to see just how airborne lint can easily become. That actually *doesn’t* sound like a good idea to me. What about stretched-out cotton balls?