Actually, colleges here in Texas, as a prerequisite to graduating expect some level of hours spent doing a community service. Sort of a graduate seeing of the real world. Thus it is a form of college credit and some of the actors and set up at our haunt do infact get credit for up to 40 hours of such service being performed.
It is the haunt however, the charity that already had such official status and connections to do so. You might ask around?
This connection with the real world then justifies you including your experiences in reports, observations of sociology and so on. Understanding the applications of your particular development of skill and knoweledge and how it benefits the world at large.
Working in a charity haunt is certainly better than volunteering to clean up 2 miles of the highway with a garbage bag or planting bushes in a city park or hustling people door to door for some kind of community donation.
If you really wish glowing reports from your sponsors, be sure to show up when it is time to "tear down" and clean up the mess after the haunt season as well. Get the complete picture of how much work is involved.
If you are into make up and effects, that is much easier and ANY haunt needs such help at reasonable rates and would be glad to fill out a form.
The word intern escapes me though. This usually means gettting college credit to go get coffee and sandwitches for either sub standard pay or college credit? Advertised as hands on skill development like learning a surgical proceedure but, in fact you will be the coffee boy when ever that word is used. In some applications like being an intern to a radio station and then getting on the air, this might have some merrit. The general problem is that college councilers are not really too worldly or creative and you must go above and beyond their knoweledge and get them to go along with it to have some personal benefit for yourself.
Another fabulous post from the U.S.Department of Wild Imaginings, now in spectaclar stereo, sponsored by the Adhesives and Sealants Council, suggesting ways to stick things together since the 1800s. Not fabulous in a gay way. Your results may vary. Illinois residents add 8% sales tax. These posts have been made by professional post makers, do not try this type of posting on your own without extensive training, lovely assistants and a trusty clown horn.