2. Wasn’t snow white kept in a glass coffin while she slept? Very vintage fairy tale aesthetic.
3. A few people pointed out in the tags that a full-sized glass coffin would be a terrific terrarium for lots of the already spooky critters you keep in terrariums- tarantula, toads, snakes, carnivorous plants etc. And the coffin shape would give them lots of space and take the spookiness to maximum.
We just did flowers for a glass coffin and it was superb. The body was done up in a white suit, silver accents and tie. They had us do silver and white carnations on his funeral spray and it looked like they were burying a knight in armor.