A Gallery of Logos based on Chiropractic Logo samples
Trollrunor, lönnrunor or rungaldrar, runes used for magic purposes (haven't checked how correct the info is, there's a lot of modern hocus pocus mixed in many of the guides or chart you find. Know ginfaxi was used by glima wrestlers. Aegishjálmur is probably the best known, but sadly claimed by neo nazi groups today, kind of like the Thor's hammer was in the 90's.)
books-g-maciocia - Google Search
The complete Icelandic staves / Ásatrú symbol series. Each artwork is representing an element. They are presented here in the following order : fire, earth, metal, water, wood and air. The symbols are accompanied by stanzas of the Hávamál or Völuspá, written in runes. You can find the stanzas in English and the names of the symbols on each individual post here http://avaluk.tumblr.com/tagged/pagan
Nordo-Celtic knot symbolizing the Drakkar longships paired with the central Icelandic Vegvisir ("sign post"), which is a type of late medieval bind-rune that was a magic sigil to prevent the bearer from getting "lost in the storm". The Vegvisir is often erroneously identified as a Viking-age rune.