“Does anyone know what this is, specifically what the carvings in the object are?”
“From the little knowledge I have about Nordic mythology, this looks like a Nordic/Icelandic stave, a sort of rune for good luck (fishing or finding gold) for the fans of the Viking series.”
Small porridge crosiers were used like today's whisks.
#21 can also be a washing paddle a hand tool used to do laundry. It is made of wood, shaped like a baker's peel, but with a much shorter handle used as a grip. It was used to beat the wet clothes and linens, pushing out the dirt by hammering the items against the washboard, or against the flat slabs built into the laundry area.
And you know this from experience??