Over the past four years, cremations have surpassed burials as the most popular end-of-life option in the United States, according to the National Funeral Directors Association. At the same time, companies have been springing up touting creative things you can do with a loved one’s ashes, such as pressing them into a vinyl record, using them to create a marine reef, or having them compressed into diamonds.

Cremation—along with these creative ways to honor the dead—is often marketed as a more environmentally friendly option than traditional embalmment and casket burial. Concern for the environment, in addition to economic considerations, may be driving some of the increase in popularity.

“[For] some people, I bet that’s part of it,”