Trove Green Provisions is holding a pre-Mother’s Day pop-up shop sale at its new location at 330a Boston Avenue. Besides its line of natural, sustainable skincare products and gifts for the home, Trove Green will be selling one-of-a-kind scarves in the Ukrainian flag colors handmade by Medford’s Blue Meridian Crafts. Each scarf features a unique combination of fabrics. Cost is $20, and profits will go to the nonprofit Doctors Without Borders.