If you love shopping Opening Ceremony for unique fashion finds or pride yourself on seeking out fresh, new designers, you might just have a thing for Tumblr's new online shopping destination. Of a Kind is Tumblr's first retail destination, carrying exclusive, limited-edition goods from upcoming designers — and launching today. According to executive officer and cofounder Claire Mazur, "the idea is to promote emerging fashion designers through e-commerce and editorial content." With a focus on one-size-fits-all accessories for the moment, site plans include gradually adding clothing, featuring one designer for one week. If you're wondering who you can expect to see selling on Of a Kind, the site's first retailers Mandy Coon and Lizzie Fortunato Jewels are setting the tone for a crafty, eclectic-cool vibe with goods like Coon's Ernie Bunny Bag ($295), and prices ranging from $50 to $500. Just keep in mind that designers' offerings will be exclusive and numbered to editions of only five to 50 pieces.