Keep driving on to Kalona and downtown is the Pink Begonia, a really nice girls' antique mall. I emphasize the girls aspect, because here in Iowa City we only have boy antique stores, and geez, could the guys wash something off once in a while? I digress. Pink Begonia has tinkly fountains too, lots of pretty china, and a really good selection of antiques. Across the street is a favorite fabric store, Willow Creek, always worth a visit. Another shop I love is only open in summer on certain weekends, Magadalena's on the English, the very best antiques, I always want everything in the store. My children are more enamored of the pygmy goats out behind the shop, they insisted on naming them and love it that they get to feed them crackers.
Now for the really important travel tip--eat at the Tuscan Moon! Who would think you would find a great Italian restaurant on the main street of a tiny Amish/Mennonite village? You can, and it is wonderful. On weekends, my kids' guitar teacher, Tom plays there. He is a great classical guitarist, the whole experience there is highly recommended.