Yaarel
🇮🇱He-Mage
Among skills to make candles? Honestly, a Religion check would work for many sacred traditions.What would you use to make candles?
You really don’t need much in the way of tools, but you do need to be able to collect the Ingredients - beeswax or tallow, and a suitable fibre for the wick. 5e has its strange division of skills and tool proficiency. And “collecting natural ingredients” is lumped into herbalist tool proficiency.
Also a Nature check.
Even an Animal Handling check, in the sense of livestock whence tallow, and in the sense of beekeeping whence wax.