1. A species of trout, originally named because their colorful appearance was reminiscent of the calico dress fabric pattern associated with the Dickens' character Dolly Varden in Barnaby Rudge.
2. There is also a type of wooden siding called Dolly Varden, more accurately referred to as "rabbetted bevel" siding.
3. A "Dolly Varden" or "Doally Varden" is a name given to a cherry topped, icing covered current bun (Belgian bun) in the Cumnock Muirkirk area of Ayrshire Scotland.
4. There is also a vanity mirror designed to sit upon a dressing table that is called a Dolly Varden mirror. Typically it has hinged winged mirrors on either side and is festooned with plaster flowers around the edges.
5. A Dolly Varden is also a large hat trimmed with flowers (named after the Dickens character)
6. The character also gave her name to a kind of flowered muslin dress for women, with a pointed bodice and tucked-up skirt, as well as to the calico mauve-and-green-spotted fabric associated with this style of dress.
7. A type of excursion passenger car used on the Denver, South Park and Pacific narrow gauge railroad in Colorado around the turn of the 20th. century.
There's more, but one gets a certain sense that Wikipedia is just toying with us...