Heirloom bottle or birdhouse gourd seeds.  Five per order.  This thing went CRAZY in our garden last year so be sure to plant it where it has plenty of room.  It had absolutely no pest problems in zone 7.  It grew with very little care.  It produced over 30 gourds from one plant.  So much fun to dry, paint, or make natural looking birdhouses.  These can also be waxed and used as a portable/camping water bottle.