If you want to become a Registered Minister, you can become a Legally Registered minister online in just a few seconds. Here are some sites that do this.
http://www.ulchq.com/
http://themonastery.org/
http://www.ulc.org/
http://www.ulc.net/
The Universal Life Church was started before the Religious Freedom Restoration Act, which provides protection to religions. There were a lot of cases with Native Americans, and Psychedelic Churches from the 60s, and a few people sacrificing animals and stuff. The RRFA protects Religious practices.
The ULC was started by someone who could not read, so when someone would come to him and say "This book says God says" he was like "I can't read". So he started his own religion that accepts everyone and every God. This is a real protected religion.
http://en.wikipedia.org/wiki/Universal_Life_Church
Once you are a registered minister, you are allowed to practice religious ceremonies freely and start a ministry. You can also marry people in your state (even Gay people if it is legal in your state), and I am pretty sure other states as well, but laws vary state to state.
With Christianity or Islam you would have to go through years of schooling to get legally registered like this, but the Philosophy of the ULC is that Christians say "God ordained Humans over the animals" so every human is ordained. They just have to register to be in the ULC for it to be recognized.
I have been a Minister with the Universal Life Church for 5 years now, and I have been doing various religious studies on various religions. Here is my Certification that shows I am a Minister, just so you have an example.