Wow, only 3????? That would be a piece of cake for me. We're required to offer an activity 3x per day/7 days per week, usually around 10 am, 2 pm, and 7 pm.
The daytime activities are fairly structured, but we have all sorts of different things going on at night. A couple of bluegrass bands "jam" two nights during the month, plus a few local churches come in for singing during the week. We also tap into the local college community as many of the Greek organizations do service projects. I'm lining up different civic & hobby clubs to present lectures, and there's nothing more thrilling than a visit from the local high school sports teams & cheerleaders.
Ask EVERYONE, and I do mean everyone, about anyone they know who might be able to come in for an hour and demonstrate a skill, craft, or special interest. You'll be surprised who is out there just waiting to be asked.