Combine all ingredients (except for the cherry) with 1 cup crushed ice in an electric blender. Blend at a low speed for five seconds, then blend at a high speed until firm. Pour contents into a champagne flute, top with the cherry, and serve.
Champagne Flute
Crush ice in blender. Add rum, lime juice, and 1/4 medium avocado in blender. Blend until thoroughly mixed and smooth. Pour into glass and garnish with lime wedge.
Old-Fashioned Glass
Combine the peaches, lime juice, rum, schnapps, brandy, vanilla, and sugar in the blender until smooth. Slowly add the ice with the blender running and process until smooth. Serve in chilled cocktail glasses.
Cocktail Glass
Combine all ingredients (except for the cherry) in an electric blender and blend at a low speed for five seconds, then blend at a high speed until firm. Pour contents into a champagne flute, top with the cherry, and serve.
Champagne Flute