Abstract Art
I was inspired by the textures of paint remaining on my  
palette and decided to reuse it; as most artists scrape
away the leftover paint and throw it away.  At the end of
each painting session, I would use all the "leftover" paint
from my palette to slowly create an abstract painting over
time.  This became my method to introduce a "green" and
"recycling" aesthetic into my artistic process.  It's much
better on the environment to reuse materials for a new
piece of artwork, instead of creating more waste.