I'd like to try this but am worried about attracting cockroaches or ants. Did you mix any kind of insect repellent into your paste?
No I didn't add any insect anything. It dries completely and is very solid. When you think about the small amount of flour actually present in that much paste I doubt it would be of interest to ants. We don't get cockroaches so I wouldn't know about them.
It's really the same paste used for kids crafts and none of the things we made as children ever got insects interested, even in humidity. I can't say it would be 100% fine for everyone - when I lived in a humid tropical environment even tea towels would get mouldy - but none of this paste has ever gone bad for me.