I thought of having my mom's ashes in an hourglass as it gives a sense of continuity of life, but didn't think they already had them as an urn and was happily surprised to find justhourglass.com
It is exactly what I wanted. Great quality, very easy to assemble. My husband and I worked on the ashes a little, separating the very thick part of them and also getting rid of the very fine powder of the ashes. We also collected some sand from he beach and mixed a little bit of it in so that it flows better. Very happy with the results. Also, customer service was great. I first bought an hourglass that was too big, I returned it (full money refund minus shipping) and got a smaller one. They helped me with this and all went smoothly. I'm a happy customer. Pic attached (Not sure why it is not upright, it is in my computer, sorry)