Frisbee golf, biking, rollerblading, skateboarding, gardening, cooking, painting, geocaching, hiking, fishing are all pretty cheap to get into.
Is there any type of garbage you keep around in case it might be useful, like some kind of crafting material?
you can also steal physical media from Walmart, copy it all to a hard drive, melt down and cast the plastic into dildos and buttplugs for your own enjoyment.
that's no orc horn