Cracked

So now that my room is very nearly black I need some very nearly white art to make it less bat cave, more dark glamour. Fatefully, I came across these three images all with light art pieces with a ‘cracked’ element to them.

These first two are sort of similar in their minimalism, but somehow range from very modern and intentional feeling (above), to earthy, almost like a twisted root (below).
This might be my favorite. It looks like a shattered ceramic tile. Maybe it is. DIY please?