you don't want to seal them in anything. the buds need a fresh supply of air in order to dry properly. also i dont know of any air tight baggies other than vacuum sealed ones, which you don't want to use for drying b/c of air supply, they will work fine for storage after you dry them.

ideally you'll want to hang the stems from a string or something and keep them in a dark place with good airflow. one time i took a screen and placed it in my dresser drawer and placed all the buds on that and kept the drawer cracked open...

do a search on drying and curing. read them. take what you learn and adapt to your unique situation.