DIY AC. This is really easy to make and would help keep the room a lot cooler in the early and late parts of the year. You don't have to have bagged ice in the center either, ice packs or a frozen gallon of water work fine.
Homemade 5 gallon bucket Air Conditioner: Small fan set on top of lid, 1 gallon milk jug of frozen water inside the bucket. Air output varies between 40-45 degrees F. It can also be made with a styrofoam cooler instead of the bucket.