My dad is an engineer and a machinist. He spent most of his life working at his own metallizing business. Growing up he always wore a faint smell of metal, like he just walked through a cloud of vaporized batteries. So, for this Father’s Day, I decided to create a portrait of him simply using rust from steel filings. It seemed fitting. As did the second image I created of The Iron Giant, one of my favorite animated film characters. The process was simple, I threw down the filings on some watercolor paper where I wanted the rust, sprayed some water on it, and waited for it to oxidize.