Cool idea!
But even though I love love love it, instead of Machinarium my first choice would be to virtually experience the Samorost worlds (I have a fear of heights so a VR Botanicula would probably cause me to have a panic attack)
Same here :/ I remember a trip from primary school, we went
to a old castle, and it was getting too high while we were
walking the stairs to the upper part, felt awfull.
Now to the subject
I personaly would pick Machinarium.
Sure, other AD games look sweet too, but Machinarium has
the kind of world which I like the most. Old, rusty, there's life
but mostly looks empty, and every part of the world seems
to be full of stories or just looks intresting. The atmosphere
as a whole is simply outstanding.