You can choose to cover the hole of the CD with your design, or you can use the hole as an integral part of the design. You can alter the other side! There are so many possibilities! Do a Google image search for altered CD and you'll get lots of inspiration.
If you alter a CD, please post a photo on your blog and place a link at the bottom of this post. I will not be hosting a swap, but if you see an altered CD that you'd like to swap for, please contact the creator privately and arrange your swap.
If you have problems entering your link, please email the link to me and I'll take care of it for you.
This is new, challenging, and intriguing! Please participate. Here are two CDs that I have altered: