Does clickbank have any images you can use on your site to link to your ref url?

I want to try replacing the google ads on my site with clickbank links but I need some type of appealing image to use.

Thanks

Most of the ClickBank products have their own affiliate area, where they provide all the common tools including Banner Adds. You can find the affiliate url from the description of that product in ClickBank list or from the main site -> affiliate link.
Hope it helps.