Some people say they are dolls--but some people say they aren't. I believe trolls are dolls since they are jointed representations of human-like creatures meant for play. Dolls or not, Trolls are immensely popular with collectors and have been since their creation in the 1960s.
Sizes of Trolls
You can find very tiny trolls at only 2 or 3 inches tall, up to very large trolls at 18 inches or so.
Any troll at 12 inches or so is considered very large, with trolls over that considered gigantic. Large vintage trolls are generally much rarer than small vintage trolls.
Companies That Produced Trolls
Dam Things trolls were the originals, first created in the 1950s. Many, many other companies have produced trolls and troll clones including Nyform, Reisler, Uneeda (Wishniks) and Playmates.
Years of Production of Trolls
Although troll production started in the 1950s, trolls became wildly popular in the 1960s, when they had their peak of popularity. Trolls have gone in and out of production ever since, and they are being produced today as both playthings and as collectibles by such companies as Nyform and even Dam (only in Denmark).
Materials and Characteristics of Trolls
Nearly all trolls are made out of hard vinyl, although they have been made out of nearly every other material you can imagine including ceramics, rubber, porcelain and even hemp!
Trolls generally have jointed arms and heads (although some have unjointed arms) and plastic or glass eyes, with a little sprout of hair on their heads. They have great big heads, hands and feet.
Prices and Secondary Market for Trolls
As of 2016, prices on trolls range from only a few dollars ($1 to $5) for late, common Russ trolls, to $200+ for rare 1960s Dam Things animal trolls (like giraffes and lions).
Smaller, more common animals can be $25 to $50. Non-Dam troll animals can be much cheaper, especially if their tags are not attached. Small 1960s trolls can be found for $15-$30. Certain rare, vintage Nyform trolls from Norway can bring over $500 as can rarer large (12") Dam trolls from the 1960s.
I wouldn't be surprised at this point if you are looking for a box in your garage that has your old trolls from your college or childhood! Remember, though, all trolls are not valuable today. They were produced in the hundreds of millions, and only mint and rare trolls bring high prices. A collection of trolls, however, can fit in nicely with either a collection of dolls or a collection of toys. In any event, just looking at a troll can bring a wave of nostalgia for the 1960s or 1970s, when trolls seemed to be taking over the universe!