>>18145148 (OP)
you talk to like minded people and propose buying an ice cream machine for the local community center, for instance
the proposal goes through whatever layers of bureaucracy are set in place and then the budget is approved and the community center gets an ice cream machine. like minded people get together and learn how to operate the machine, and now the people have ice cream they can eat when they go to relax and have fun at the community center
for instance
the question is, of course, flawed. the motivation in your example is purely capitalist from the get go, it's a shop, so the capitalist answer is obviously more "straightforward"
but if we are talking about two individuals who are motivated by the art and craft of making ice cream, one in a capitalist system, another under communism, then I imagine they would both start by making ice cream in their own kitchens, which they would share with family, friends, neighbors, until they "needed" to scale it up with heavy machinery. that's when it would get interesting. that "need" to scale up is particularly interesting. would an ice cream artisan "need" to produce more ice cream to be fulfilled? would the owner of the ice cream shop's main motivation be to serve more people, or to make more money? with that motivation gone, what would people want to do? some things would absolutely be harder under communism. but they may also be unnecessary.