Was it Thrifty that was served on the cone in the shape of a cylinder? The server used a device that he/she stuck into the tub of ice cream and had a squeeze handle that pushed the cylinder plug of ice cream onto the cone?
I remember those cones were 5 cents.
Ice cream cone, pack of gum, a coke, cup of coffee were all just 5 cents when I was in college. Small cheese pizza was $1.25. Chicken and ground beef were 25 cents per pound. Gas was 20 - 25 cents per gallon, but had lead in it. Mug of beer was 25 cents at The Wet Olive in Stillwater, OK. A pitcher was $1.25 and had a bunch of nice fresh green olives in it. I went to college on $1300 per year and that included tuition, room, board, books, etc. It cost $11 per credit hour my frosh year, and rose up to $14 per credit hour by my senior year. {1969-1973 Ok State U. GO POKES!!!!} It cost 25cents to go to a movie when I was a kid, until age 12, then it cost 75Cents to go to a movie. The drive in was $1.00 per car load. A good used car was $125. You could buy an old house for $9K and a new one for $19K in OK.
Yep, there were cylinder shaped scoops. You remember correctly. They were 5 cents a scoop.