Yes, finding the fresh milk is the hard part. I live in an area full of huge dairies, and you'd think it would be easy to find, but it's not. We do have a pregnant heifer, but she hasn't started producing milk yet, and even if she does, I can't imagine her letting us milk her - she's a real pain!
I remember making butter from heavy cream when I was in 2nd grade. I think we put it in a jar and shook it????
Didn't know you could use a blender, Prissy. If I can find fresh milk to get the cream I'm definitely going to try it!!