Possibly a/v presentations and outdoor/orienteering activities.
I don't see any point in giving a long jail sentence if no real harm was done, it would be far better to spend the cost of a long prison term on getting the message through to the thousands of other spotty herberts who think it's funny.
Sadly modern technology and communications allow immature thrill seekers an ever-widening range of ways of causing trouble with their pranks, e.g. lasers, emailing bomb threats to airlines, spray painting peoples' vehicles. A long prison term will punish an individual, but few others of his/her ilk are likely to be no more aware of the sentence than they are of the nuisance and danger caused by their stupid stunts.