Exciting news for gruppy parents today on Nerve-offshoot baby-site Babble.com. The site’s Stroller Derby blog has word of a new product called the Daddle, a saddlelike contraption that allows Pops, once he straps it on, to get down on all fours and have Junior ride him like, well, a horse. Only Nerve, of course, would find the one children’s product that is impossible to describe without sounding absolutely filthy. There’s no word on whether riding crop and backless chaps are included. Or whether it can be used for, uh, off-label purposes.