I found 2 separate sets of these- 1 set on 2 different days in the Danube River in Germany. These look like teeth, but when I cleaned them they began to smell like skunk.... the more I cleaned, the stinkier they got.
Anyone know if they are teeth, a plant, or something else entirely? It was very difficult to determine. (My husband is a dentist and initially he was certain they were not teeth, but after being cleaned, it was even more ambiguous.) I finally gave-up, took this picture, and threw them away... FAR AWAY!
Thank you!