Three newly made costumes this year and one vintage.
One of my 9yo's went as a Tootsie Roll. While we freestyle-sewed the 'roll' we spent some time making a lovely headband and ensuring that we had the right lettering. My daughter cut the letters from a pattern (did you know that the Tootsie Roll font is really close to Cooper Black?), traced them onto fabric, cut them again and then glued them to her costume? I am proud of my little DIY-er in training. We also put together a cute headband with red ribbons and a real Tootsie Roll on top.
My other 9yo went as a cat - her favorite cat from the Warrior Book Series (by Erin Hunter), hence the yellow color. I think the cats name is LionBlaze.
My 7yo wore a leopard costume that must have been sewn by my Mom in the very early 1980's. I am amazed at how well it is holding up. She wore a similar costume - also made by my Mom - last year too.
My 3.5yo is a snowy owl, inspired by her favorite animal and an article in Family Fun magazine.
The body suits for the owl and cat are from the patterns that are annually available by McCall's or Butterick for various Halloween costumes (lion, frog, dragon, cat, bear, etc.). It is so easy to use that pattern as a base and then build off with details from there. The cat really didn't have any additional details, but the snowy owl needed wings and the headpiece, both of which I borrowed on heavily from the Family Fun October 2014 issue.