Mandeville Shopping (Saints Stuff)
http://www.mikes-den.com/about.asp
Google Maps has it in the 'wrong' place. If you're coming from the south shore, you want to get off at the (real) Hwy 22/Madisonville Exit and go left under the bridge. Not the West Approach, but by KMart. Going west, at the first intersection/light, you'll want to turn left and go into the Northlake Shopping Mall. It's all the way in the back.
I think they're kinda pricey, but they have a good LSU selection. I always go to Black and Gold on Vets for Saints stuff.