What's the easiest/fastest way to get tokens?

As topic says:

What's the easiest/fastest way to get tokens? I collected all of them from achievements that I got. And I know that fastest way is just to purchase them, however it's not what I'm planning to do. I also know that sometimes you get 50 tokens as a daily reward when you collect all 3 Bapples.

I also watched the videos to get that 1 free token, but now I'm getting a pop-up that says that there are no videos remaining to watch.

Solution 1:

This question is a bit old, so there have been some updates.

You can do the special missions, located below the Jelly Lab. Those will get you a whole bunch of tokens. You will get 350 tokens if you complete the whole special mission, usually.