join the cosmo early buying program

cosmo is a curated buy/sell children’s boutique and community space opening at 265 malcolm x blvd in spring 2026 — and you’re invited to help us build it! between now and opening day, we’re expanding our inventory by accepting bags of outgrown children’s clothing in exchange for store credit. more than anything, we’re excited to meet you and hear your thoughts as we shape this space for our community.

how it works: 

  • we’re looking for high-quality, gently worn clothing from newborn – 12 years. we love natural fibers + well-made pieces in good condition
  • pack your items into bag(s) you’re willing to part ways with
  • we’ll review your items and offer store credit for the pieces we select
  • anything we don’t choose to sell will be donated through our community give-back program
  • if you’d prefer not to donate the items we don’t take, just let us know before handing them over and we’ll make sure they come home with you

pick your ideal selling experience:

  • in-store hours: want to see the space before we open? as important members of this universe we’re creating, we’d love to welcome you in, share a glass of wine, and hear your thoughts. check this option to be emailed when in-store buying hours are announced in the coming weeks.
  • home buying appointment: busy schedule? have 40+ items and don’t want to schlep them over? select the home buying option and we’ll reach out directly to coordinate a visit (available in neighboring areas of brooklyn)


    i’m interested in a home buying appointmentemail me when in-store buying hours are announced