You can "cheat" if you want to appear to rebel against digital by applying an approriate filter to the output of a digital image.
iPhone even has an app called "Hipstermatic" to will make your iPhone pictures look like they are taken with a Holga.
There is a lot to be said though for experimenting and a hands-on approach to photography : making your own lesnes, alternive developing processes and so on. Then it is more about the process, the learning experience, rather than just the final result.