Aegishjalmur is rune stave that is well known to be a Viking symbol of victory and protection. The emblem itself reminds eight branches ...that look like radiant tridents that are located around a central point of the symbol, the point that should be protected. Those eight tridents protect that central point.
I just finished modelling this for fun, based on the picture included, that I found on google. There are three versions, depending on whether you need two loops, one or none at all. Hope you find this useful. Happy printing!