If you're like many of my readers, you may have been pondering the problem of what to get me for a gift. Look no further than Bathsheba Grossman's sculpture. They're mathematical, they're beautiful, and they're unique:

And they're made with an astounding 3D metal-printing process:

To start building a model from my 3D file, the design is built up, one layer at a time, from steel powder held in place by a laser-activated binder. ... This produces a porous steel part that is about 60% dense. ... The model is heated, the stems are dipped in a crucible of molten bronze, and capillary action causes the bronze to wick throughout the piece. Counterintuitive to say the least, but apparently it works very well.

Plus, how cool a name is Bathsheba Grossman, with a domain name of bathsheba.com?