Marc's Christmas Box was planned as a seasonal T. Rex single for release during November 1975 on the T. Rex Wax Co. label as catalogue number MARC 12. Although label artwork was prepared and release plans were evidently advanced, the single was ultimately withdrawn before any commercial pressing took place. The proposed release was centred around "Christmas Bop", a festive recording written and produced by Marc Bolan. The project was abandoned following concerns that the song