This video from Lutheran Satire points out the pitfalls of attempting to use illustrations to explain the Trinity. It's a fun look at how easy it is to fall into heresy with our analogies.
I laughed when I watched this, but it worried me too. As someone who wrote a book that attempts to convey Trinitarian theology through story without using theological language or Christian terms, I'm well aware of how horribly wrong this could go.
My book, The Seed: A True Myth (available May 16th), probably won't sell enough copies to end up on the radar of the heresy hunters, but escaping controversy isn't my concern. What I really care about is faithfully communicating historically orthodox biblical truth in wildly (and risky) creative ways. At the very least, I hope I did better than a shamrock.
Maybe you should avoid my book and just join me and St. Patrick in confessing the Athanasian Creed.