Cornered Audio speakers fit neatly onto your wall in the corners - Audio Affair Blog
Mount-It! Speaker Wall Mounts, Pair of Universal Side Clamping Bookshelf Speaker Mounting Brackets, Large or Small Speakers, 2 Mounts, 55 Lbs Capacity, Black (MI-SB37) : Amazon.ca: Electronics
The Woodpecker Hardwood Speaker Wall Brackets (Pair)
Speaker Corner Shelf - Wall Mount With Cable Feed Through And Brackets – Expression Products Ltd
Vebos wall mount Sonos Five black 20 degrees
Pair of Compact 3" Satellite Corner Speakers - 100w 8ohm Background Wall Mounted for sale online | eBay