Today's free offer at giveawayoftheday.com is for some software that can be used to generate ecover, boxes, gift card images, etc.
Might not be as good as coveractionpro (IMO) but it's free today.
The catch is that it has to be downloaded AND installed today. Follow the directions on site and/or in the download files for registration info.
Here's the link to the software:
Giveaway of the Day - free licensed software daily. Cover Commander 3.1 - Cover Commander helps to create Software Boxes and EBook Covers.