My little brother, who is nearing his sixth birthday, has a rather mobile tree in his room. Unable to find a cedar or the like, we cut down a scraggly little yaupon, a shruby Southern member of the holly family, with pretty shiny little leaves, but not much of a Christmas tree. He has, so far, kept it in one place though I suspect it could wander if it (or he, rather) had the will. But some oddly placed boughs of holly and cedar encumber it, along with a strand of multi-coloured lights.