Just seen these. They could be really cool. Would get really dirty though but could make an interesting show piece.
[h=1]DDT-15 Skeleton Lower[/h]http://www.revolvr.com/ar-15-skeleton-lowers.html
It would get filthy! It would be cool to put a lower parts kit in it and have it in a man cave or something of the likes on a desk, shelf, wall etc. for people to see... But I would rather have some taxidermy or a gun out... However, it's kinda cool, I always like seeing different things.