the valknut- vikings painted this on their shields to call the Valkyrie to take them to Valhalla if they were killed
This rune is known as vegvisir, Icelandic for "guidepost" and sometimes referred to as the Viking Compass. The purpose of this magical charm is to help guide one's way without getting lost. This is surrounded by all 24 characters of the Elder Futhark.
Vegvisir "If this sign is carried, one will never lose one's way in storms or bad weather, even when the way is not known."
Viking protection runes helm of awe talisman black vinyl decal
Viking protection runes vegvisir compass talisman by sparrowhawk9