Assorted Experience

Candle wax softens and melts below the boiling point of water Heat up water in a kettle, heat a cup of water in a cup, or if your kitchen water is properly hot, use the kitchen faucet Using gloves to manipulate the holder flush the holder with boiling water Use a spoon (preferably plastic) to scrape away the softening wax Run the faucet into hard to get at nooks and crannies This will do less damage to the holder than scraping it with a hard object like a knife or scissor