Yes, ingredients in Aiw can be substituted to vary the taste and experience. For a slightly sweeter profile, one could replace peppermint schnapps with a fruit-flavored liqueur, such as raspberry or apple. If looking to lower the alcohol content, substituting the sour mix with a non-alcoholic version or even using lemon-lime soda could also create a lighter, more approachable cocktail. These substitutions allow for customization based on personal preference or availability of ingredients.