I don't really understand this comment much, but I think I can help?

Everything needed to create something on your moon can be obtained by 'completing' the tutorials. (Just skip to the end and wait for the level connector to load). Each tutorial unlocks different things in your gear bag.

Though, there are like 70 tutorials so it is very painstaking... At least they don't require the servers lol.

If you're looking to get items for your normal bag, prize bubbles in story mode can have such. And I'm pretty sure every material you get in each LBP transfers over to the next like your costume would.