Do you already make your own whipping cream?
Just buy a container of whipping cream from the milk products fridges at the grocery store and whip it in the bullet or rotary beaters.
You'll have whipping cream in not time, you can add a little sugar and voila, ready to top your fresh strawberries.
Now if you want butter, simply keep on whipping, without added sugar, add some salt instead and whip it good!
You'll have butter when you find the heavily whipped cream starts to clump together and separate from some liquid which is the buttermilk.
From making your own butter, now you also have some buttermilk for those yummy buttermilk biscuits!
And you're saving $ because butter is quite expensive to buy.
Jon and I love making our own stuff, and we just do small portions so it gets used up quickly enough not to go bad.