Lost set of house and bicycle keys with a bright orange leather keychain at Walmart on Manchester Ave, St Louis.

I lost a set of keys, which has a bright orange leather keychain attached and a couple of house keys, while shopping at the Walmart on Manchester Ave in St Louis. I think I may have left them in the shopping cart or dropped them in the parking lot. If anyone finds them, I would really appreciate getting them back as they also have a unique bicycle key that I can't replace easily.