This beautiful butterfly walked on my finger yesterday and I took a picture with my cell phone :)
I once filmed something similar:
In the video you'll see me do this with a fly and then a butterfly. I'm not the only one who has experienced this, and I know anyone can do this. The key is to be really calm and send the butterfly love. It's also important to not force it. I've found that the trick is to put your hand close to the butterfly and allow it to come to you when it connects with your good vibration.