Case study
Run The Jewels × GMI: how the gold-hands grinder became tour merch fans keep
Run The Jewels' gold-hands grinder is one of the most collected pieces of artist merch of the last decade — and it was machined by GMI. Here's how the duo's signature logo became a 3D-engraved collectible, and what any band or label can learn from it.
August 2026

Why artists choose machined metal
Most merch is used once and forgotten. A grinder is different — it sits on a table and gets handled daily, which means the logo earns repeat impressions for years. That's why artists like Run The Jewels don't treat grinders as promo junk: a logo engraved into aircraft-grade aluminium outlives a tee, a poster or a sticker, and it keeps selling the brand long after the tour ends.
The brief behind the gold hands
Run The Jewels wanted merchandise aligned with an album release — products that reflected the duo's edgy, high-quality image while doubling as collectible items. They approached GMI specifically for premium, customizable grinders. The objective was simple to state and hard to execute: grinders that captured the RTJ brand essence, kept full functionality, and felt luxurious in the hand.
Machining the signature mark
The standout element was the group's signature gold-hands logo, 3D-engraved and displayed prominently on each piece, paired with a matching engraved scraper. The grinders themselves were built in premium 4-part and 2-part designs from aircraft-grade aluminium — polished finishes, magnetic lids and fine-mesh screens for optimal performance. This is the difference between a manufacturer and a trader: the mark is machined into the metal as part of the product, not printed onto an imported shell.
The result
The custom grinders became bestsellers within Run The Jewels' merchandise lineup and gained recognition as collectible cannabis accessories. The success deepened the group's fan connection while cementing GMI's reputation for brand-aligned customization — a case study other artists and labels now point to when they want merch that becomes a collector piece.
What your brand can copy
Three rules from the RTJ run apply to any band, label or dispensary ordering custom grinders:
- Make it metal — CNC-machined aircraft-grade aluminium reads as premium and survives daily use.
- Engrave it deep — 3D engraving in gold, silver, black or rose gold turns a logo into a machined feature, not a decal.
- Sell it as a keeper — price and present it as collectible merch, and fans treat it that way.
See your logo on a grinder before you order
The same process that machined the RTJ pieces starts with a free instant mockup — upload your logo at /customize and see it on a 2-part or 4-part grinder in seconds, then get a free digital proof before anything is machined. No minimum order: start with one unit and scale at wholesale tiers.

