In fact, tattoos inspired by Scandinavian mythology never go out of style.
As we can see in these images, the world of Norse mythology was full of gods and goddesses, giants and other strange and powerful creatures such as elves, dwarves and earth spirits. It may be difficult for a 21st century man to fully understand the Viking worldview, but the center of the Viking cosmos is the Yggdrasil ash tree growing from the Well of Urd.
Yggdrasil contains the Nine Worlds, the home of the gods, man and all spirit beings. The gods live in Asgard and Vanaheim, and people inhabit Midgard. Giants live in Jotunheim, elves in Alfheim and gnomes in Svartalfheim. There is also the primordial world of ice, Niflheim, and Muspelheim, the world of fire. The last world is Hel, the land of the dead ruled by the goddess Hel.
The gods and goddesses worshiped by the Vikings are Odin, Thor, Loki, Baldur, Frigg, Freya, Freyr and Njoror. There are many other gods and goddesses in the Scandinavian pantheon, but these are the most famous, judging by the Scandinavian sagas.