The correct pronunciations of Celtic is 'kel-tik'. We have all been saying the Boston Celtics wrong the whole time!
One of my first projects coming out of school was creating a logo for a Celtic Lounge. The Celtic Lounge was a social community site for those of Irish decent (but not limited to). It was the days of Black Planet, MiGente and MySpace. The Celtic Lounge never really picked up enough steam and not too long later it was shut-down. Here are some of components that I was tasked in creating.
A native application on the social site.
To generate a buzz - Post cards were created and sent out. This was one of the designs.