Many moons ago, I cut up a paint pad and used it to make a hedghog egg for easter for my son. It looked rather good glued to a hard boiled egg. And of course I used the obligatory pipe cleaners and felt tip pens as well.
I use them for cutting in wall to ceiling and vice versa, they're really good for that, just remember to wipe the edges off the pad with a rag upon each fill so as not to mar the bit you don't want to paint, i also just stick the pad on a long handle and run it along for a perfect edge. (much quicker than a paint brush for cutting) But the rest i use a roller.