It's Customer Appreciation Day at Carvel. From 3-7pm today, you can walk into a participating Carvel location and get a free 4 oz. Junior Bonnet ice cream (1 per customer).
Find a Carvel near you here (sadly, none in Colorado). Information about kosher certification at Carvel is here (my understanding is that Carvel ice cream itself is under the Kof-K, but each individual location might or might not have store certification).