This theme works great for sites relating to restaurant/food & drinks:
A very cool looking education/books related Joomla 1.5 theme design:
A Final Fantasy Joomla template that’s perfect for those who are starting fan sites using this amazingly easy-to-use CMS.
For all Halo 3 fans, this is a Joomla template just for you.
Here is a guitar hero theme made for JOOMLA 1.5.
Very easy to install 
If you need instructions, check out this page.
Installing themes to Joomla 1.5 is just as easy. Here are very basic instructions (very similar to the original Joomla version).
1. Log into your FTP
2. Open the folder “templates”
3. Upload the unzipped theme folder
4. Log into your Joomla 1.5 administration
5. On the top navigation bar, click “Extentions” > “Template Manager”
6. Click on the theme that you would like to chose
7. Click Default on the upper right corner and that’s it!
A remake of the Fashion MOD wordpress theme as a Joomla template
The tourist journal wordpress theme in a Joomla version for you to use:
This is the Joomla version of the wordpress Hosting Tec theme. The popular hosting theme is now available for those who are using Joomla as their CMS!
This is a World of Warcraft Joomla 1.5 Template:
(Install the theme into your templates folder but don’t forget to unzip it first!)
