• Green pen with silver cap on a sheet of lined paper
  • Two pens with green and silver accents on a textured surface
  • Two pens with decorative elements on a gray surface with tools in the background
  • Two pens on black stands with a blurred background
  • Two pens with a glowing green marker cap on a dark surface under ultraviolet light.
  • Two pens on black stands with a textured surface background
  • Pen with a checkered grip on lined paper
  • Pen on a piece of lined paper with a small wooden block and keychain in the background.
  • Wooden block with a metal rod on lined paper
  • Pen with green clip and wooden base on a gray background
  • Green pen with silver accents on lined paper, next to a wooden block.
  • Decorative pen holder with a pen on a wooden surface in front of a computer screen.
  • Green pen on a stand with a blurred background of a computer screen and desk.
  • Green pen on a stand with a blurred background of a computer screen and mountains.
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RudeGrain

One-of-a-Kind Piston Pens – Handmade Resin + 3D Printed Cores | Glow Edition Available

One-of-a-Kind Piston Pens – Handmade Resin + 3D Printed Cores | Glow Edition Available

$45.00 USD
$95.00 USD $45.00 USD
Sale Sold out
Shipping calculated at checkout.

Handmade • One of a Kind • Optional Engraving Available

Introducing the newest drop in our One-of-a-Kind Gifts Collection — hand-turned piston pens crafted from colorful epoxy resin poured over custom 3D-printed cores. Built using the Penn State Industries Piston Pen Kit, each pen features a smooth mechanical click mechanism and a resin body filled with depth, character, and movement.

Every blank is uniquely made, giving each pen a completely original look. No two cores, swirls, or color patterns will ever repeat.

Only two exist — once they’re gone, they’re gone.

🖋️ Available Styles

1️⃣ Chrome Hardware + Lime Green Glow Core (Glows in the Dark)

  • Bright chrome hardware

  • Vibrant lime green 3D-printed core that charges under light and glows in the dark

  • Multi-color resin swirl with a glossy finish

  • Futuristic, eye-catching aesthetic

2️⃣ Bronze & Brass Hardware + Beige/Black Core

  • Antique bronze and brushed brass hardware

  • Subtle beige and black 3D-printed core

  • Warm, earthy resin tones

  • Perfect for collectors who love a vintage feel

✨ Features & Details

  • Hand-turned epoxy resin pen body

  • Custom 3D-printed internal core suspended in resin

  • Glow-in-the-dark option available (Chrome + Lime Glow)

  • Built with the PSI Piston Pen Kit

  • Smooth mechanical piston-style click

  • Parker-style refill included

  • High-gloss finish

  • Comfortable weight and balance

  • Packaged in a gift box

  • Each pen is truly one of a kind

⭐ Engraving Available

We now offer engraving for an additional cost to make your pen even more personal.
Please reach out before purchasing if you would like this item engraved, so we can confirm the placement, text, and pricing.

🎁 Perfect For

  • Holiday gifting

  • Stocking stuffers

  • Teachers & coworkers

  • Writers, artists, and creatives

  • Handmade gift lovers

  • Desk décor collectors

📦 What’s Included

  • 1 handmade piston pen (choose your style)

  • Pre-installed Parker-style refill

  • Gift box

📐 Specifications

  • Length: ~5.25 in

  • Mechanism: Piston-style click

  • Materials: Epoxy resin, 3D-printed core, metal hardware

  • Finish: High-gloss polished

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