Work out a good marketing angle for your product and get the marketing department on board, before the buyer.
The sights themselves fit into sockets cut at the proper angle for drift, and are raised in their sockets the requisite amount for the range by means of a small hand-wheel; they are thus non-recoiling sights.
At iO9, the site takes a different angle for horror movie posters.
You can place small tile squares as spacer between the larger tiles turned to at an angle for a diamond shape.
There is a pull out arm that creates a precise 90-degree angle for larger scrapbook layouts.