Anybody ever do anything with that? Other than the time you have to make two sculptures for Skullfinder, I mean.

I've recently gotten into doing that. What I usually do is recreate 8-bit video game sprites from the 1xwxh blocks. It's kinda challenging as I have to use no more than 100 blocks, and find the right colors. Of course, I have to have enough Essences to make the various colors.

What I've made so far:
Mario from Super Mario Bros.
An extra life from the Mega Man series
A waver from the Metroid series

I have no good way to take screenshots, but I do have patterns for them, if anyone is interested. You could likely work out Luigi from the Mario pattern, as well, and there seems to be more than one color scheme for the waver, probably indicating different strengths of wavers.