I was wandering through the net, and happened on a company that offers 'casket furniture'.  Yep, use it to store your books and other items, until you really need it, then you can get buried in it.  Talk about an investment plan ::

Available as a textured Bryce OBP (575k) here, or an untextured OBJ (11k) here.

Enjoy, and come visit us at RenderGods.

Edit - Exploded view and test with David here.

Come visit us at RenderGods.

Ignore the shooty dog thing.