When I was studying in Jerusalem, my room wasn't much bigger than the bed itself. There simply wasn't space for an altar, but I felt lost without one.
Fortunately, at one of the museums I found a postcard of a Phoenician goddess figurine. I tucked it into the corner of the mirror on the wall, and voilà: instant altar. One 3 by 5 inch postcard was all it took.
Later I found a copy of the same pregnant goddess in an antiquities shop down by the King David Hotel. (Mass-produced and hence affordable to the ancients, they remain so today, even for those of us on student budgets.) How many people come to Jerusalem to buy idols? the shopkeeper joked as he wrapped her up.
She sits now underneath the Yule tree, pensive, her hand on her great belly. Soon.