There's a growing retail niche hawking urbane fashions for wee clothes horses, and Posh is riding the wave: In addition to its accessories for adult city folk -- from flowing, flimsy dressing gowns to beaded flip-flops -- this Highland Square shop devotes its entire back level to out-of-the-ordinary baby attire, toys and furniture. And whether you're shopping for your own sprout or someone else's, it's an irresistible invitation to pick out something completely and inspirationally different: From the adorable kimono-styled Kidcosmic ensembles in poodle or cowboy prints to elaborate dotted-Swiss canopy beds, this is merchandise guaranteed to eschew the old cookie-cutter mold. Just the thing for the discerning junior individual.