Rooms and objects you can put straight into a portfolio, shared by the people who made them. Open the builder, click Files, then Library to add any of these.
Object · Decor · 6 KB · 28 triangles · starter pack
Object · Architecture · 6 KB · 40 triangles · starter pack
Object · Architecture · 6 KB · 40 triangles · starter pack
Object · Architecture · 6 KB · 12 triangles · starter pack
Object · Other · 7 KB · 124 triangles · starter pack