My POV is we are here to be an outstanding service to our guests... we have an honor bar with a few items from costco (wine is the exception, but I never buy it at more than 6.00/bottle) and I leave the following message:
THE MAPLERIDGE HONOR BAR
-An Experience in Honor and Convenience-
Our guests frequently arrive without nibbles, drinks or basic groceries. For your convenience we provide a few bottles of wine and water, some cookies and candies, and a cracker or two. These are for your convenience, and we want you to enjoy this 'emergency' cache of goodies. At the same time if you leave an 'honor payment' for whatever you use we will continue to provide this convenience for future guests! Also, we are writing a feature story for AirBnB Magazine about how this works out! So enjoy! And let's pay it forward for all our future guests!