My cousin, Steve, is leaving for Iraq soon. His wife, Christy, ordered a "Daddy Doll" for their daughter and "Daddy Dog Tags" for their son. Using pictures, the doll is a lifelike, hugable subtitute for Daddy while he is gone. The company was started by two military wives targeting military families, and although that is still their focus, the dolls, pillows, dog tags and other products can be great for any child missing any person for any reason. It has already helped my cousin's little girl sleep through the night while her dad was away at training.
Ian is too young to need a product like this, but if Curt ever has to back when Ian is older, I would definitely look into it.