Here are some graphic and simple cards from Finland's Polkka Jam.
"Polkka Jam is the family company of Kristiina Haapalainen and Sami Vähä-Aho. Our studio is located in Kemiö, archipelago of Finland where we distribute Polkka Jam collection to dozens of boutiques across Finland and abroad. Our production is focused on the imagery that we design and create together. Our products bring beauty and joy to every day life. High-quality materials, domestic production and the timeless imagery of our designs help ensure our products stand the test of time. Our designs are inspired by nature and everyday life, and they embrace soft values. We are dedicated to our work and passionate about design and illustration."