Clicker,
Because it is quicker than an eyedropper, every morning I spray the forearms of all my mantids until I see a couple of drops forming, with the exception of my Ghost. She does not appreciate it. My other species, Sphodromantids, Hierodula, Double Shields, Budwings and Popa Spurcas all seem to anticipate their morning "lapping" drinks. I use distilled water.