Unless perhaps you would like to help spread the word that viking is in fact a profession...

Show skills and trades generally attributed to "Vikings" 

"Viking Knitting?"

"Viking Crochet?"

"Viking Knotwork?"

Or stubbornly make Cornelia Caeciliana's skin crawl.

The choice is yours. 

1

Sea Monsters in any medium 

2

Silly Sea Beasts from the youth would also a most welcome sight!

3

Items used on a ship 

-Lamps of all cultures?

-Woodworking?

-Navigation?

4

Thar Be Sirens?

Bardic? Perhaps a new narwhal song that will become the newest earworm?

Or an epic poem telling the deeds of the great majestic narwhal on the sea?