I recently found a local outlet that stocks a full line of a cologne which I frequently use. they also sold menthol crystals. I've used the crystals before. I add them to aftershaves to get a cooling bump. today I iced; Pinaud Vanilla clubman Crusella&co vetiver Proraso white Proraso green Florida Water I've enjoyed ICED aftershaves, and bombed lathers. both the m-bomb and the crystals are available from the shave den shop. have any of y'all experimented with these?