This shape is a fun one. Did you know it can tessellate in 3 dimensions? Plus it looks cool.

I've included a single-color version along with a multi-color version. I don't have a multi-color printer, but if you print it, please share a make! I'd love to see it :D

The bottom layer as it contacts the build plate is very small due to the nature of the shape, so you should use a brim to keep things stuck down nicely. But other than that, the 45 degree angles should print cleanly without any support.