Pre-orders are now open for Grooby’s popular Grooby Girls Calendar and can be done at GroobyStore.com.   “We’ve hand-selected 13 shots of some of our favorite Grooby Girls to assemble one of our most ambitious calendars to date,” says Grooby CEO, Steven Grooby. “With the amount of models we work with, this is a task that takes weeks to finalize.…