Carousel Depending On Page

I’m developing a custom theme. I have a carousel (from twitter bootstrap) on the left-hand side of just about every page. It functions and works as it should, but there’s something I need to add. I want it so the admin can choose which images the carousel cycles through depending on which page they’re on. So what would be the best way to go about this?

I was thinking I should add a custom field (using that custom fields plugin) to add a list of each page in the form of check-boxes. The administrator would select which page(s) they want the said image to appear on. I figure I’ll have to use some sort of ‘if’ statements in carousel template part, but I’m really not too sure.