I don't know if anyone else uploaded something like this or not, but I saw something earlier. When you right click on a cake that has a candle, it makes infinite candles. I even tried it without an item in my hand, and it still works. I don't have an images, but I have this video to show what I mean. (Hope it's alright I share video showing what I mean)
https://www.youtube.com/watch?v=im7R_1DdrZ4