An apparatus is provided for coloring threaded material. A payout support member of the apparatus is configured to support a payout spool. A drive member is configured to rotate a takeup spool. A coloring assembly comprises a colorant applicator holding portion that is configured to receive a colorant applicator. The coloring assembly also includes a passage configured to receive a thread and to dispose the thread against the colorant applicator as the thread is wound onto the takeup spool. The coloring assembly is positioned to direct the thread drawn through the passage toward a portion of the takeup spool.