There are many sites which one can sell vintage marbles. One can place an ad on eBay or Kijiji. On the Buy Marbles website, one can both purchase and sell vintage marbles.
For vintage bathroom fixtures I would suggest shopping online. One of the best sites is www.vintagetub.com,you can also try www.vintagebathroom.com.
Flea markets and garages sales are the best places to find a good deal on anything vintage, but in the event that supply is hard to come by, they can be purchased from any number of online retails. Etsy would be a good place to start.
you can find them online
If you are looking for anything vintage, thrift shops are the way to go. Stores such as Salvation Army, Goodwill, and other thrift stores sell tons of vintage treasures. Etsy, the online store, also sells vintage items that are at least 20 years old. There are also tons of other places, from garage and yard sales to online auctions. eBay of course is also a good site.
For vintage motorcycle helmets the site retrobikegear has a good selection. For other helmets like football pasttimesports or ebay are good places to look.
Oxfam charity's online store sells a good selection of vintage dresses. You could also try the site for 'i love vintage' for more clothing. Auction sites like ebay could be great for finding bargain vintage clothes.
Vintage Books is good online web site that has information about vintage books and vintage books for trade or sell if you live in the Portland-Vancouver area. But, the web site also has links to other vintage book buyers and sellers.
Quoizel chandeliers are a nice traditional form of lighting that can be found through a number of online resources. Depending on your price range it is a good idea to check places such as Ebay, and Craiglist for more vintage lighting.
One may purchase vintage trophies and awards online through Crown Awards. They offer high quality vintage items from sports, media, entertainment and other industries.
The best place online to purchase a vintage chainsaw is Ebay. Amazon is also a good site to locate vintage items. Check back regularly as new listings are always being added.
Clothing companies that specialize in vintage clothing and accessories include ModCloth, Femme Arome, and Unique Vintage. A few good places to find vintage clothing include Etsy Vintage, eBay, and of course the local thrift shop.
A good place to look at for vintage tubs is online. Sites like ebay.com will probably contain a vintage tub for sale. http://www.antiquetools.info/a1049549-where-can-i-find-a-vintage.cfm