Sleipnir (“The Sliding One”) is the eight-legged horse of the god Odin. Sleipnir is one of Odin’s many shamanic helping spirits, ranks that also include the valkyries and Hugin and Munin, (Odin's ravens)
The Mjolnir (Thor’s hammer) was certainly a weapon but It also occupied a central role in rituals of consecration and hallowing. The hammer was used in formal ceremonies to bless marriages, births, and probably funerals as well.