Enchantre
Oil Painter
Yes, I could. Oh, wait... um, yeah, I've got those already.You could try using some Comfort Zone Feliway.
Since January, I've tried Feliway, and about three other brands of "comfort" and "stop spraying/marking" products, in different areas.
In fact, Ghost puddled UNDER the Feliway diffuser in the hallway. *sigh*
She is the most adorable, fluffy, cute cat... but she fucking marks. She will go WEEKS without, then suddenly will just mark everywhere. I'm about ready to pull out my hair.