Returning to the real world, a family member sent me this page from smart cremation:
Are you looking for a unique and long-lasting way to commemorate the life of your loved one? If so, getting a tattoo with your loved one’s cremated ashes may be the way to go. This relatively new method combines a small portion of cremated remains with traditional tattoo ink and allows you to then use the ink for tattooing purposes. This can be a truly personal way to remember your loved one and carry a piece of them around with you throughout your life. Here’s a little more information about the procedure to help you determine if getting a tattoo with your loved one’s cremated remains is the best option for you and your family.
At least it makes some sort of sense, although a bit too morbid for my tastes.