When you add Drifloon as a friend to your town and you bring him a doll, you unlock the ability to travel to the Dream Islands. Once you're on a dream island, you'll have plenty of items to take back to your town.
Everything new, everything you might be missing, from building materials to collectibles, to event items, Dream Islands are all different, and they have different materials you can collect. There's one thing you'll find on all of them, though, and that's Stardust. So what is Stardus and what do you do with it, and how does it work in Pokemon Pokopia?
How to get Stardust
Star Pieces are made of Stardust. This special material can only found on Dream Islands. It doesn't matter which Dream Island you visit, as each of them will have Stardust scattered around the edges, especially near or on the beaches.
You can also find some in underground areas while exploring near the center of Dream Island.
You need a lot of Stardust to turn it into Star Pieces. Since you can only go to Dream Islands once per day, you'll want to stack each day you go.
Pokemon Pokopia: Complete List of Crafting Recipes
So you know everything there is to do in Pokemon Pokopia, here is the complete list of crafting recipes and their materials.
How to get Star Pieces
Star Pieces can be made at a workbench. The first time you collect Stardust, you will learn the recipe for creating Star Pieces. You need 99 Stardust to do a star.
Crafting is the only way you can get Star Pieces. 99 for a single Star Piece may seem excessive, but you'll find plenty on a dream island on every visit. You can get around 50 Stardust in a single Destiny Island visit.
What to do with star pieces
Once you've made a star piece, there are two things you can do with it. If you've visited your friends' cities and played multiplayer, you can get a Pokemon from your friend's city to visit and come live in your city.
To do this, e.gravel to a friend's town and talk to the Pokemon you want to move in with you. Once that's done, you can give them the Star Piece you have done. In return they will give you a gift named after them.
When you are in your city, take this gift and open it near an empty lotand you will be able to befriend a Pokemon of the the same species as the one from your friend's town, and it will come move into your city.
Don't worry, you won't steal a Pokemon from your friend. A Pokemon of the same species will appear, not the actual Pokemon in your friend's town.
Star Pieces are also used to create Rare Pokemetal. A Pokemon with Rify specialty can take Star piece and turn it into Rare Pokemetal.
Pokemon Pokopia: How to find and trade Gimmighoul
You can exchange your feathers for rare items once you find this treasure hunting Pokemon.