Where can you buy empty tea bags for repacking dry loose tea?

There are a few providers of empty tea bags on Amazon.com. Here is one:

Amazon.com/exec/obidos/tg/detail/-/B000RJ3T6G/ref=ord_cart_shr?_encoding=UTF8&m=A2XHOWDS6RAZ6X&v=glance">http://www.Amazon.com/exec/obidos/tg/detail/-/B000RJ3T6G/ref=ord_cart_shr?_encoding=UTF8&m=A2XHOWDS6RAZ6X&v=glance

and another:

http://www.Amazon.com/100-Finum-Filter-Large-Brown/dp/B000KDW9MO/ref=pd_sim__2