This is an example of a promo box I used in my store to add a little fun. The photo came from iStock photos (cost about a $1.00). I then added the text in PhotoShop elements. The montage can then be uploaded to PhotoBucket (or your photo/web hosting service). I then used a custom promo box to insert the HTML link to the service.
Here are a few places you can find photos and illustrations for your promotions:
Microsoft Clip Art
Lots and lots of free clip art – but the popular ones show up everywhere.
http://office.microsoft.com/en-us/clipart/default.aspx
For more unique images and vectors check out these professional services – many of them offer free downloads to get you started.
Dreamstime – allows you to download up to 50 images from their Free Image library
http://www.dreamstime.com/res1049617-dreams-time
Fotolia offers new/different free photographs every day
iStock Photo offers images for $1.00 – and to get started will usually give you three free credits. Enroll by clicking on the banner below: