Lost blue keyring with multiple keys and a dog bone charm near the park in the Appleton-Oshkosh-FDL area.

I lost my keys on Monday evening while walking my dog near the park by the Appleton-Oshkosh-FDL area. The keyring is blue and has a small charm shaped like a dog bone attached to it. There are several keys, including a car key and a house key, so they're quite important to me. If found, please reach out as soon as possible!