Trophies
Most hotel staff keeps a number of these limited, so your price is really worthwile ;).
Rugs
Bear rugs on occasion in catalogue; most hotels have the complete collection of rugs and doormats.
Plants
Not all hotels have all plants available, so here are they all. Did you know the Swiss hotel also has the Aloë Vera plant in catalogue here (5 credits) ?
Bathroom
Not permanently in catalogue in some hotels (though they are in most hotels):
Windows
V23 brought new windows.
Accessories
And the rest, just for the sake of being complete. The beds are an artefact of early Habbo, but still exist in Finnish hotel.
