BB-8 and R2-D2 Costume

Perhaps these are the droids your looking for? We just finished making these for our children (Scout, Age 5 and Declan, Age 3). My daughter is a born princess. Everything she owns is pink and sparkly. When we asked her what she wanted to be this year she said that she wanted to be BB-8 instead of a princess or something else frilly and Pink. So we decided we would make her the best damn Star Wars costume she could imagine knowing that we will likely spend the rest of her Halloweens making Disney princess costumes or something else involving pounds of glitter. Thankfully her Brother will do anything his sister tells him so he was just as excited to be R-2-D2 or Harbee-Devo as he would say it.

BB-8 was made by paper macheing the heck out of a Yoga ball and then doing the same with our largest salad bowl for the helmet. We bought some LED battery powered lights for the ball and glued Gator-aid bottle top and a cut up plastic milk carton for the lights to shine through.
R2-D2 was done the same way but his is made out of a big box that our Costco toilet paper came in and a few parts (PVC pieces mostly) picked up at the local hardware store.