Checking in to the Bellevue, WA Westin today I asked out of curiosity what that might be? Agent had no idea, but the concierge told us it was "beer and snacks." I opted for the breakfast voucher, calling down to ask whether they a regular non-accessible room to swap before I unpacked; they did.
About an hour later there was a knock at my door. Room service fellow delivered the photographed items! Not sure whether it was triggered by my room disappointment, or the initial amenity conversation. Just thought of might be interesting to hear what that option might be at various properties.