Narrow wall spaces can be tricky. If it's anything less than a foot wide, it's probably best used only for light switches or slithers or mirror. Here's another thought however. Next time you're roll home after the polo [Design Trawler recommends Hamptons, Windsor, Sand, or Snow] take two minutes to dismantle some of sidings and take home a pitch-side memento.
Hailing from the last ever Cartier International at Windsor back in 2010, this simple hoarding is a nice way of remembering a summer day in the sun. Just add autographs.