Swedish style Mjolnir (Thors hammer) made simple so people without 3d modeling experience can make their own design in tinkercad
Will try to make the description, spelling, etc, as simple as possible:
Mjolnir (The crusher/pulverizer), Likley evolved from the axe of Perun, which evolved from a stone axe.
Sun cross, representing the sun and possibly the four seasons.
Troll cross, representing protection against trolls and the like.
(DISCLAIMER: invented in the 1990's by the smith Kari Erlands, but has become a popular motif)
Thurisaz/thorn rune ᚦ, representing Thor
(DISCLAIMER: I don't know any historical examples of using a single rune to represent a word like a Chinese character but it's another popular motif)
Vegvisir (Way shower/guide), representing the holidays celebrated in Norse paganism
(DISCLAIMER: historical use is debated, no concrete evidence since medieval Iceland, another popular motif)
Aegishjalmur, (Helm of awe) to induce fear and to protect, made out of several Algiz ᛉ runes.
(DISCLAIMER: mention of the symbol is from the viking age, but the actual symbol only has evidence from the medieval period)
0.15mm layer height
-45° angle (symbol face up, hammer head touching print-bed)
0.4 nozzle should do fine, just do -45° angle for best result.