Cosmetics I don't want to lend

We decided to gather at my house for a party tomorrow.
My friends said they wouldn't wear makeup because their houses are all close by.
I said I would do it for you, but now that I think about it...
I don't think lip products will work for this reason, and I don't think anything that touches the skin will work either.
As I had thoughts like this, I realized there was nothing I could do.
Do you guys have any cosmetics that you're hesitant to lend out?

source: Concerns here