Owww... how interesting. I've never seen blank air fresheners like that. Do you scent with FO/EO's?? I put these into my car.... didn't know I could make my own.
I made them once but they didn't work out for me - they didn't smell unless I had my nose on the paper. I'd love to hear how it works out for ya! I know you are all set but here is another resource for next time....