We have 2 large "milk carton" concession stands on the Illinois State Fairgrounds in Springfield. We sell these cups of "soft ice cream" there. We enjoy the work and the effort.
We use older, stainless steel machines that do not pump a lot of extra air into the serving... so there is more product on your tongue!
These concession cartons have been there since 1964 (they were changed to steel buildings in 1988 as the only thing holding up the wooden structures was the fact that the termites were holding hands!)
In 1970 when we started this, the Illinois state law read that you could not advertise the product as "Ice Cream" unless it had at least 6% butterfat. Our product was made using Taylor Freezers with Prairie Farms 4% milkshake mix. Every other customer said, "Make mine real thick!" So we changed the valves and increased the pulley size on the dasher. We lowered the temperature to 19 degrees instead of "milkshakes" 26 degrees. And we continued calling them Milkshakes. Only a few people have complained and even fewer refused them! Others had different names for the same product...imcluding Dairy Queen, Tastee Freeze, Frosty etc. We are now slowly changing our signs to read: "Tastes just like old fashioned hand-cranked ice cream". We will try to show these cartons and the young ladies who operate them for us. :-)