To light a candle with a toaster, turn the toaster on, and use a piece of spaghetti or a long wooden kitchen match. Stick one end into the toaster slot, making sure it's close enough to the heating elements to catch fire. Once it's lit, light your candle, then extinguish the stick or match safely. Also, turn off the toaster when you're done. This method requires extreme caution as sticking anything in a toaster comes with inherent risks.