Brass house keys on red key fob

I lost my brass house keys with a bright red plastic key fob yesterday around 3pm near the Fox River Mall parking lot off College Avenue in Appleton. The set is on a short dented brass ring and includes a small mailbox key plus a tiny sun charm on the ring. The red fob has a faded label that says 'Home' written in black marker. They're not fancy, but they mean a lot to me because one key opens our old family mailbox and the set was given by my grandmother. If someone found them, I’d really appreciate getting them back.