Official MG map pockets can be found online, but this one works just as well. I used some velcro to attach mine to the footwell. This particular model is for the driver side, but if you want a passenger side version, simply mirror it. If you have an old MGB, you know that in-cabin storage is pretty limited. This has come in handy for throwing my glasses in there, or charging cables, etc. I personally covered mine in some matching black interior auto carpet, and it looks great. 

Oh, the photo of my completed one looks shorter than the actual model because the print got kind of screwed up towards the top there and I just snapped off that part. But once covered in the automotive carpet, none-the-wiser.