If you find yourself in need of an overwhelming jolt to the system in order to keep at your creative endeavors, I recommend exploring Matthew Barney's "Rivers of Fundament." Enter at your own risk here.
I recently saw the sculpture installations at MOCA. Though there's a six hour video opera (the script is available to read on his website) that I have yet to subject myself to.
What I saw, though, was amazing. Pieces of incredible size and built of remarkable industrial materials - sulfur, salt, copper, gold, etc. Lest I fall into the abyss of analysis that could accompany a discussion of Matthew Barney's work - I'll just stop myself here and say that it's shocking and original. Original in the sense that it's truly visceral and evocative. It's not in any simple conversations with its related source materials.
If you need a reminder of an individual's ability to imagine an entire world and bring it into being with only their two hands and a distorted mind, look no further. It certainly made me feel powerful, just thinking that one person was capable of filling a warehouse with metallic abberations (that are supposed to inhabit the dreamscape of Norman Mailer).
Enjoy?