When we couldn't find corner guards in our local lumber or big box stores
and the price on the internet ranged between $30-$50,
we decided to get creative.
I purchased 8' corner pieces of trim,
trimmed them to size,
and set to work (tedious, delicate work) forming caps from a scrap piece of trim I had.
I glued the caps to the top of the guard piece.
The result was quite fine!
A savings for sure.