The origami type look very complicated, unless you have a lot of time on your hands, the version of wrapping around a tubuar object with a hollow end where you can just tuck the newspaper in and slide it off, is by far the quickest. I have used them successfully, you can plant the seedlings with very little fuss as the roots can grow through the paper. I just usually tear it a bit before planting just to give it a helping hand.
I have never thought of the problem with print. You could have a point there. I put newspapers on my compost heap though and they are tabloid so may have a lot of coloured print. I thought it would be okay.