These are Slipper Coffins. They are what Ancient Egyptians on a medium sized budget used to bury their loved ones - it is believed the poor ones just used a ditch. Basically a human being sized pot with a hole at the top, the corpse was simply 'slipped' into the receptacle which was then plugged by a lid featuring an often crude likeness of the deceased.
Our favourite is the bottom one, which is the post mortem equivalent of a really shit passport photo - and this one has been embarrassing this poor spirit for about 3,500 years so far.
