This is a simple idea, but very effective nevertheless.
I have made it even easier to find courses in the MyMoodle course list by placing category icons next to each course name.
Courses in the Sport Category have a small football icon, IT courses have a floppy disc, Tutorial courses have a question mark symbol and so on.
The script works by first checking for a .png file with the name of the category ID. If it finds the file it will include the icon, if an icon has not yet been created for the category then it will show the default icon.
If anything, the script adds a bit more eye candy to the MyMoodle page as well as making it easier for staff and students to find courses from a list (especially if the list is quite long).
I have attached a screenshot below: