One of my favorite things to do on my younger two is to only use the top section of hair for piggy tails and leave the sides down. I don't know why, but I love it so much more than making regular piggies. Maybe I like how it frames their face better than pulling it all up. Maybe that's the same reason I don't ever do half pony tails. I dunno....
To make each side have the same amount of hair, try a zig zag part....
You could also do a smaller zig and zag for a different look. Add some bows and you are so done in like two minutes. Great for when you are in a hurry (Yah, yah, I know we should just wake up earlier, but what can I say....that's the reason for the crooked bows.) The curls are definitely optional but cute!