The pie scent is the only one I know of. They apparently removed Jasmine's "jasmine" scent, since they found out that some people are allergic to the scent of jasmine (that's a small "j"... the plant, not the princess ) and people were having coughing and sneezing fits during the show.
I think the grape smell is left over pie smell not a different smell. They prob use the same machine to blow the pie smell and to pop the corks on the champane. Just a guess.
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