I think you’d be okay as long as you let it dry thoroughly, since the resin is dissolved in denatured alcohol. Dried shellac is so non-toxic that it is used as food glaze on pill shaped sweets such as Skittles - http://en.wikipedia.org/wiki/Shellac!
Shellac creates a beautiful finish. My only concern is if it would create a slick surface making for tricky landings and potential injuries.
Shellac creates a beautiful finish. My only concern is if it would create a slick surface making for tricky landings and potential injuries.