Last week UCLA’s architecture and urban design grads graduated with a day of presentations of projects that were the fruit of years of study. But will they all go on to build buildings? Not necessarily. Just as law grads sometimes take their costly degrees and apply them elsewhere, so do tomorrow’s builders. But perhaps the least obvious alternative to architecture is. . . making ice-cream. But that’s what UCLA grad Natasha Case decided to do when she and former homebuilder Freya Estreller created a business called Coolhaus selling organic ice-cream and cookie sandwiches with punning names like Frank Behry, Eric Owen Moss-carpone, and CaraMia Lehrer, and Buck-mint-ster Fuller.