If you select "Item Creator" from the Menu, you can use patterns to create your own original items. You can also create your own brand logos.
Acquire new patterns
Each pattern has a rarity and a category. When your Influencer Rank rises or you use the Gacha Machine, the patterns available to you will increase. After acquiring a pattern, you will usually need to unlock it with Creative Keys before you can use it.
Make a brand logo!
When customizing an item, press the - Button to select a brand logo. Although there are four logos provided at the start, you can edit them to create your own original brand logo.