Women-owned and operated by a single designer-jeweler at a 4455 Mentone Street studio on OB's north side, Fancy Fun Jewelry is an appointment-only jewelry design studio stocking one-of-a-kind handmade pieces. The by-appointment bench model parallels live-studio production at nearby Blondstone Jewelry Studio, giving OB two independent women-run jewelry benches working within a ten-minute radius. The studio is formally designated a transgender safe space and LGBTQ+ welcoming, with a gender-neutral restroom — one of the few OB jewelry studios documented in Google Business Profile with those identifiers. English-language assistance is available, the studio is wheelchair-accessible, and the only accepted payment is cash, a deliberate simplification rather than a technology limitation. The Mentone Street address is a short walk from the Voltaire Street art corridor anchored by working artists such as Alyssa Stewart, Artist, placing the studio within OB's maker rather than tourist geography. Commissioned one-off pieces designed around a client's concept, sketch, or heirloom stone — with in-person measuring and fitting during the appointment — is the studio's highest-value service.