I would normally tell you to go to Wazeka, WI and take highway 131 north along the Kickapoo River. However, we have had A LOT of major flooding in the last 3 weeks and most of the towns along the Kickapoo got almost destroyed. Avoid the Kickapoo River valley.
As a result, I would go to Prairie du Chein, hit US 35 north toHighway B (just north of Ferryville), take B to the right until you get to WI 27 north, that will take you to I90 E a couple of miles to I94 W and arrive in Warrens.
The Cranberry Festival hasd one of the largest craft-flee markets in the area. there are a couple of jewelry makers that have some beautiful work.
