Filmstrip brushes

I've looked in the memories and I can't find any filmstrip brushes. Well, no I lie, I have found some, but they were only 100px x 100px, and I'm after some brushes that are slightly bigger. I know that there are some, because I used to have them but then all the brushes got deleted off my computer, and I really can't remember where I got them from...

If anyone knows where I can find them, I thank you in advance!