What could be better on a sunny Saturday morning than this stroll through a wonderland of hand-picked junk and one-of-a-kind treasures? Spearheaded by the folks who run Details, a downtown Littleton bath and body shop, the market debuted last summer to delighted crowds, and this year expands from four to five shopping opportunities, offered on the first Saturday of the month, from May through September. And it's a small but classic market, with a little bit of everything -- from the perfect sturdy covered cake platter to a hand-sewn cotton girl's pinafore in aqua, festooned with purple flowers, for only four bucks. What else? The usual what-have-you, including garden ornaments, cheerful salt-and-peppers in the shape of a family of robins, rustic handcrafts, old and new jewelry and vintage linens are only a few of the things that await patient shoppers. Wear a sun hat, as it can get warm on a summer day, but if you start to fade, you can always duck into Details or truck down Main to Olde Town Antiques for indoor browsing.