Using bookmarks as tracts has a two-fold purpose: it points to the Word of God for truth and gives the Gospel, offering a continual reminder of the Good News. Contact me if you would like any of these and I can provide them for you. I hope this helps even with creating your own tracts. Secondly, I like using cards because people can put them in their wallet; but the best place for all these things is in the heart, meditating and ruminating on them day and night: the paper fades as a flower passes away, but the Word of God remains forever.