I've joined forces with the hobbyDB team to create a database of every Starbucks Mug ever made! You can use hobbyDB to manage your collection and wish list, show it off, find values for your mugs, and to trade, buy and sell. We currently have four volunteers and would love to have more join the team. If you'd like to help, contact the guys at hobbyDB.
Starbucks City Mugs 
Where is it available
It’s in Norway.
I’m visiting Oslo in June. Will it be available then?
Please post your question on the FB page. Someone from there will most likely to respond and know the answer! Thanks!!
https://www.facebook.com/pages/Starbuck-City-Mugs-Collectors/237577116304434
How can I order an Oslo mug
please try ebay or amazon.