Finally, if you’d like to buy your own coffin now and enjoy it till you need it, have a look at William Warren’s bookcase coffin.
Yes, it’s a bookcase which can be reassembled as a coffin after you have read your last page.
Go to his website, type in your size and download instructions for making it.
The cost depends on the type of wood you use with pine being the least expensive.
William, a true altruists, charges nothing for the download.
Greenfield also make a bookcase coffin.