Rare ONE-OFF Wtopia × Sunizumi Shoten Silver EDC Challenge Coin / Worry Stone – Copper Floral Skull

Product Description

A rare ONE-OFF Silver EDC Challenge Coin / Worry Stone, created as a special collaboration between Wtopia and Sunizumi Shoten.

The piece features a substantial silver body, accented with Wtopia’s signature copper floral motif and silver skull inlay.

The warm tone of copper contrasts beautifully with the silver body, giving the piece a distinctive layered-metal character while preserving Wtopia’s unmistakable handcrafted aesthetic.

Measuring approximately 38 × 20 × 20 mm and weighing an impressive 80.3 g, this compact piece feels exceptionally dense and substantial in the hand.

Designed to be enjoyed as an EDC challenge coin, tactile worry stone, or collectible metalwork piece, it combines functional pocket-sized form with the character of Japanese handmade craftsmanship.

As a true ONE-OFF collaboration between Wtopia and Sunizumi Shoten, this is an individually crafted collectible made in Japan.

Specifications

• Collaboration: Wtopia × Sunizumi Shoten
• Type: ONE-OFF EDC Challenge Coin / Worry Stone
• Main Material: Silver
• Inlay: Wtopia Copper Floral Motif + Silver Skull
• Dimensions: Approx. 38 × 20 × 20 mm
• Skull Dimensions: Approx. 16 × 12 mm
• Weight: Approx. 80.3 g
• Made in Japan

Material & Care

Silver and copper naturally develop oxidation, tonal variation, and patina through exposure to air and regular handling. These changes are part of the natural aging characteristics of the materials.

After handling, gently wipe the piece with a soft, dry cloth. Avoid prolonged exposure to moisture, salt, acidic liquids, and harsh chemicals. Frequent use of aggressive metal polish is not recommended if you wish to preserve the naturally developing patina.