Beards and makeup are not mentioned in the bible
Actually there are quite specific details about beard grooming in the Mosaic Law.
And Jezebel is depicted as putting on makeup.
I recall reading a pretty persuasive post, many years ago, that highlighted that if the same "reasoning" that is used to condemn birthday celebrations were applied consistently, no JW could ever wear even the slightest hint of makeup (the argument was along the lines of "the only time cosmetics are mentioned in the Bible, someone ends up dying" - sound familiar?).