Pants that are really big are fun :) Here is how to make a simple pair. If anything is unclear just ask a question, be nice its my first instructable :P
You will need about 3 yards of fabric
PS. i wouldn't use this type of fabric... i chose it because it was shiny :P but was hard to work with and it wrinkles easily.
Step 1: Measuring
Step 2: Making the Pattern
Step 3: Cutting and Sewing
Step 4: Finishing
Decorate as you wish :D