your quick certificate maker is an excellent resource that i use every week. I notice however you have removed the only image that relates to ethnic race equality. I think it would enhance an already great resource to include images fostering gender and race equality and diversity in this resource.
I've had quite a lot of requests for less childish imagery, so have replaced much of the clipart including children with more generic images like medals, rosettes and suchlike. I've also made it possible to add your own images to the certifcates rather than having to rely on the small selection provided. Uploading of bitmap images (jpeg, bmp etc) and more typical clipart images (wmf, svg etc) is supported.