There is a great book called Witch Craft: Creepy-Cute Toys, Magical Treats, and More!, published in 2010. This book should meet your needs perfectly!
If you are looking for more information on where can you find craft ideas about witches, the best place to look is on www.allfreecrafts.com/halloween/index.shtml
http://www.enchantedlearning.com/crafts/halloween/ and: http://familyfun.go.com/halloween/halloween-crafts/ not only give you craft ideas, but a supply list as well as an instruction sheet. This can even be expanded for older children.
You can find some great children craft ideas for Halloween on Disney websites, printable websites. Anywhere on the web there are great ideas. Also look in books.
If you are looking for more information on where can you find Halloween craft ideas on the internet, the best place to look is on familyfun.go.com/halloween/halloween-crafts/
Lots of websites offer craft ideas for Halloween, espcially pumpkin creations. Please see the folowing for more information: www.celebrationideasonline.com/halloween-craft-idea.html
There is a great place online where you can get your cauldron and many other Halloween ideas. Go to www.halloween-online.com/...projects-witches-cauldron.html
Books that have good ideas for crafting on Halloween are Good Housekeeping, Easy-to-Do Halloween crafts, Enchanted Learning and a Ghostly Good Time are all good books.
JoAnn's craft store.
You can find craft ideas for plastic bottles in different books at the library. There are tons of books that have tons of ideas for crafts.
Skeletons,pumpkins,witches,zombie,spiders,and DICKS
http://familycrafts.about.com/od/halloween/a/Halloween_Craft_Ideas.htm This website has many ideas that I am sure will help you out with everything you need.
You can look for some Halloween craft DIY blogs that tell people what to do to make their own decorations. Michaels and craft stores also have ideas on their store website.