Sweden usually reminds us of the countryside and traditional folk customs. Swedish clothes are made out of wool, cotton or silk. A Swedish costume basically consists of a skirt, blouse and an apron. A striped sweater adds a traditional touch. You can add variations and more components based on personal preference. A headdress is worn by married women so you can omit that when making the costume for children.
Use a striped or plain long skirt for the bottom. Green, blue or black are traditional colors worn by women in Sweden. You can also stitch a long skirt from plain or striped fabric by cutting fabric to the appropriate length and waist size and stitching it along the length.
Wear a plain or frilled white blouse for the top. If you do not have a full-sleeved one, wear a short-sleeved white blouse and wear a long sleeved sweater to complete the look.
Wear an apron from the waist down, tying it where you wear the skirt. A long apron was worn by women since they completed household tasks all day and an apron protected their clothes. A striped blue, green or red apron adds a traditional folksy touch.
A silk neck scarf adds a traditional touch. Wear a bodice or a sleeveless vest to add to the custom look.