how to scrape off putty
Here's what to do: Scrape off as much putty as possible with the knife. Spray WD-40 on any remaining putty and let it stand for a few minutes. Scrape off any excess Silly Putty with the knife. Spray the area again with WD-40. Wipe off the stain with a cotton swab. Saturate a cotton swab with rubbing alcohol and blot it on any remaining stain.