Russ Belk -- "Possessions and the Extended Self"
This is from the Journal of Consumer Research, vol. 15 (2), Sept. 1988
Available through JSTOR & Business Source Premiere
The other article that's fun, shorter, and maybe more enjoyable is Wallendorf and Arnould's article, "We Gather Together: Consumption Rituals of Thanksgiving Day"
It's also from JCR, vol. 18 (1), June 1991