You can create some unique designs using uncommon Animal Crossing items, for example, this ACNH room design applies the Zodiac Series Furniture set, including Cancer Table, Taurus Bathtub, Virgo Harp, Sagittarius Arrow, Libra Scale, Gemini Closet and more, they can be crafted with Zodiac Fragments, which can be found ont he beach the day after you make wishes on a Shooting Star, the furniture can be purchased with ACNH bells.