Newbie to animation, help with motors

So I'm venturing into animated props this year, which I've never done. I have basically zero experience with motors or electronics of any kind. I'm going with a creepy carnival theme, and I thought I would start with something simple...a big carnival wheel game that spins slowly in my front window. I was hoping I would just be able to google a low RPM motor that I could just plug in and attach a wheel to, but it seems there's more to it than that

The wheel itself will be lightweight, made of foam, probably about 3 feet in diameter. Can someone with more experience with this point me in the right direction on what I should be looking for here? I'm not opposed to attaching various pieces together (motor, power supply, etc), although something ready to plug and go would be great

Thanks guys