I'm giving two thumbs up to the Tichy Train Group for great service and O scale parts. I recently ordered some scale windows and doors from Tichy. Online ordering was very easy, shipping was free for orders over $25 and my package arrived within two days of ordering! Excellent. I wish the Grandt Line web site worked as well.
One of the items I ordered was this neat assortment of windows, doors and detail parts. Its very handy to have around when scratch building.
I also ordered some rivets and I appreciate that Tichy casts their rivets in rust colored plastic.
Tichy Train Group