Cream dwarf hamster with lime sweater, lost near Cass Ave

I’m freaking out because I lost my little hamster, Pip, yesterday around 4:30pm. He slipped out of his cage while I was cleaning and darted outside toward Cass Ave near Wayne State University Library in Midtown Detroit. Pip is a cream-colored dwarf hamster with a white belly, about the size of a ping-pong ball, and he wears a tiny lime-green knitted sweater with a small silver bell; he also has a tiny black dot on his left ear and a faint white stripe on his tail. This little guy was a gift from my mom, and I’m really hoping for his safe return.