Are there any faster ways to earn frost tokens?

Not really just battle and explore the fest zone

I am not sure what you mean by "faster" so here are all the way you can earn tokens, it is very mutch possible to get 800+ a day with a little bit of luck and a good exploration team. Keep in mind that those ways are the ones intended to get tokens from the festival, if you have the right items / themmed pets you could sale those for tokens from others players as well. ^-^

- You get 100 a day from the task log

- Each bosses give you 25 and there is 6 of them that regularely spawn during the day (they comeback after 6 hours)

- fighting rendom enemy somtime give you a few

- you can get some from nurrituring

- chest, old chests and presents can give you quite a few tokens

- there are several hiden spots that usualy contain better chests then the usual ones

- you get some tokens for interacting (helping) with other player's ice scupltures

- i belive you can get some from the snow war but i didn't realy check the feature yet this year so i may be wrong on it

- you can get some from the winter wonderland, tho i would advise not to go there only to collect tokens

You can get them regularly from Snow Wars, it's the most common reward.