I love the Old Testament tabernacle. We can learn so much from it, and it can serve to reinforce many distinct LDS doctrines and ideas that are unique from the rest of Christianity if we carefully examine its construction and the practices performed therein.
Here's a neat article on how to properly paint a Tabernacle model. Using the Bible to try to create an accurate Tabernacle model can be a great spiritual task. I've done it before, and I plan on doing a more accurate one sometime soon.