all my pipes I have ever had I have always bought have been from a headshop. As for if people smoke tobbacco out of glass pipes, none that I know. I think that you should just stay with the herb for the glass. The best way to find if you have a headshop in your location is to ask you buddies. Where I live we have 3 headshops in town
Man just look up Head shops, tobacoo accessories, etc in your local phone book, mapquest the address and be on your way! I have found once you find one you like stick to it and you can bargain a little on the prices, just a suggestion.