Hi,
I agree with both above posters. You want to keep the focus on you, and what you are presenting. If you put too much emphasis on the SUPPORT material, it will pull focus from your presentation. Also the use of a lot of 'glitter' will make your presentation seem amateurish.
Think about the underlying structure, and make that strong, with a few embellishments, rather than a week structure held together with embellishments.
You might think of each slide as a paragraph - one idea.
Regards,
Robert