We have about 15 days until the deadline. If possible, submit your Tribute projects sooner rather than later so there will be enough time to review everyone’s projects. 
If you’re having trouble with something, reply here so we can help.
Here’s a forum search if you need inspiration (or want to practice your project reviews).
This Topic also has a bunch of tribute project examples.
EDIT: The following two links are really important for writing valid HTML code. I figured I’d share them here (and I added them to the Resources section above) so everyone can see them: