So I've decided to make visual notes of the many motifs that are fairly common in the nordic countries beginning with the most widely seen "Selbu Star" from Norway. Richard Rutt in A History of Hand Knitting describes this motif as,
The eight pointed star (sometimes rather arbitrarily named 'the Selbu star' or miscalled a 'snowflake' in spite of the fact that a snowflake always has six points) is also called the 'Norwegian star'. Yet this motif is ancient and practically universal. It can be found in Romano-British mosaic pavements, in African textiles, in mediaeval Germany and many other times and places. It is typical of Norwegian patterns[...] ( Rutt p.183-184).
These are my observations of variations only with in Estonia mitten knitting- which is rather extensive! Just looking at the names of the places the motifs mostly appear in are those that are coastal or harbor towns. I think I would like to make a map with the motifs as a I continue to better showcase the geographical layout of the motifs.
References
Praakli, Aino, Eesti mustrid ilma laande laiali. Tallinn, Estonia: Tänapäev.
Rutt, Richard, A history of hand knitting. Loveland : Interweave Press, 2003.