This 'Scare Bear' aka Big Bad Bitting Bear only took about an hour to complete and cost me no more then $3.
I hope you enjoy, and make something similar for your child
P.S. My son will be going as a 'Scare Bear' as well, hopefully an instructable on the coustume as well....
Step 1: Materials and Tools
One well loved Teddy Bear
Set of chattering Teeth or false teeth
glue (hot and/or super) - make sure it is Child Safe
and anything else you want to add to the bear