Econo Heat 603 Wall Panel Ceramic Heater for $59.99. Shipping is $5.00 for a total of $64.99 shipped. Here is a screenshot for reference. It uses natural convection technology, operates at relatively low surface temperatures and uses minimal electricity, is non-flammable, non-combustible, and can be painted with water-based acrylic paints. Most places have it for about $80.
This deal has expired. Congratulations to those able to get in on it.