We had great fun/success making our own wine this year. How about a wine making kit?
http://www.winekitz.com/index.php?id=1
A top kit is about $120, and makes 30 bottles of wine. Each bottle averages about $4 in cost, but compares very well to commercial wines selling for $20 per bottle. Maybe another $100 for the equipment you need (a one-time investment).