Pull the Silly String off the ceiling with your fingers. Avoid scraping the Silly String or picking at it with your fingernails to prevent damaging the ceiling’s surface or paint.
Create a mixture of one-half cup white vinegar, one-half cup water and 1 tablespoon oxygen bleach. Stir the ingredients until the powdered oxygen bleach is completely dissolved.
Dampen a soft cloth with the mixture and dab at the Silly String stains. Do not work the white vinegar mixture into the stains to prevent damaging the ceiling’s surface or paint.
Dab at the ceiling with a damp soft cloth to remove the vinegar mixture.