For awhile now I have been trying to figure out how to make some chalkboard items. I have tried the chalkboard spray paint which does work well on wood. I tried it on fabric and cardboard and did not have good results. The other day I received an email with a daily deal on repositionable chalkboard contact paper. I figured I would give this a try and it worked perfectly! I bought a roll of it on ebay for $9 including shipping. One roll is 18" wide by 6 feet long so it is quite a bit. The brand was Contact and it was called Chalkboard Roll.
To read more about the ideas I came up with visit YourTherapySource at http://www.YourTherapySource.com/freechalkboards.