I didn't know about the third party flickr applications though so I signed up to the Big Huge Labs application and used it to make a border collie photo booth effect image (pasted below). It's great how they have a bunch of effects that you can apply to your photo.
This is a movie poster I made using a flickr third party application.
Mashups applications seem really great too in the way that they borrow content or ideas from another site to generate something new.
Online photo editing tools
Unfortunately I was unable to check out picnik on my computer at work because flash player is not installed. I checked out Splashup and Pixenate though and Splashup seemed to have similar tools to photoshop, which I use a lot on my computer anyway. I edited a photo in Pixenate. (see below) These tools will be great to suggest to customers who want to remove red eye from their photos or manipulate them a little.
Generators
I checked the image generators, they seemed like a fun way to make a card or a poster. I made an image using Letter James below. And I used a text generator I found on The Generator Blog to make an old school dj name :)
Old School DJ Name Generator - NamePistol.com