A creamer is one of those small containers of cream used in coffee or tea.
Well?
If it’s real (i.e. dairy) cream as opposed to artificial creamers, and it isn’t homogenized, then yes.
One “crafty” thing you can do around the holidays is put some cream in a jar and shake it until your arm falls off, then let someone else shake it for a while and it’ll turn into butter.
If you’re talking the itty bitty white plastic containers with the peel off top, it probably won’t work too well. I think they are usually at most half and half (half cream half milk) so the fat content is low, and the containers don’t have much head space so you can’t get real good agitation while shaking it. If they were mechanically agitated for a long time, maybe you’d get some butter.