Here are a few Thankgiving-themed projects that are based on templates you can print on a printer. The first can be printed on any color paper, but the other two are best printed using a color printer and white paper.
Fold a 3-D paper turkey (with a printable template): http://blog.makezine.com/archive/2006/11/make_your_own_turkey_plan.html
Print and glue square paper turkey: http://www.macula.tv/downloads/papertoys/gallery/thanksgiving/main.htm
Napkin rings and placecards: http://www.merrimentdesign.com/felt-leaf-napkin-rings-and-placecards-for-thanksgiving.php (Paper and felt)

The In One Evening – Thanksgiving printables by FasterCraft, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-Share Alike 3.0 United States License.

