1. Pre-treatment for coloring flames: Fill a bucket with 1/2 gallon of hot water. Mix in one  additive. Soak pinecones in solution for 8 hours. Remove; let cones dry until fully opened and then dip in wax as below.
  2. For wax coating: Melt clear wax in a double boiler over low heat and mix in candle dye. Remove from heat; pour into tall tin can, leaving space near top. With tongs, dip each pinecone into the melted wax until completely covered, then place on foil-lined baking sheet to stand until wax sets.

Homemade Fire Starter Pinecones Photography by Country Woman.