Photo Sleeves

[robinreale.livejournal.com]

I would like to hang up an assortment of 4x6 photos on my wall, but I do not want to put them into frames. I would like to have them in protective sleeves that I can then just tack to the wall using clear push pins (do they make clear tacks instead of push pins?). In any event, I have only been able to come across 4x6 photo protectors made of plastic ... I was thinking of something more along the lines of a thin sleeve?

Any idea where I could find this?