HEAVENLY SPRUCE Mixer Melt or Wax Tart by Courtneys Candles HEAVENLY SPRUCE – Vigorous spruce with spicy and woody notes. Warm and inviting. Mixer Melts or Wax Tarts by Courtneys Candles provide maximum fragrance with value pricing. Courtneys Mixer Melts work great with any brand of warmer including: Illumination Warmers by Candle Warmers, Tyler Mixer Melters, Pluggable Warmers by Candle Warmers, Boulevard, A Cheerful Giver, La Tee Da or AromatiqueCourtney's Candles