Witch’s Brew Alumilite Pen Blank – Handmade by John U

Stir up something wickedly beautiful at the lathe with the Witch’s Brew Alumilite Pen Blank, handmade by John U.

A spellbinding mixture of witchy purple, bubbling potion green, and mysterious dark accents swirls throughout this Halloween-inspired resin blank. The bold colors twist and mingle like a magical concoction simmering in a witch’s cauldron, creating an unpredictable pattern that changes dramatically as the blank is turned.

Once shaped and polished, deeper shades emerge alongside flashes of brilliant green and purple, giving the finished pen an almost enchanted, dimensional appearance. Every turn of the pen reveals something different.

Cast from Alumilite resin, Witch’s Brew turns beautifully and can be sanded and polished to a brilliant, glass-like shine. Because the colors and patterns continue throughout the blank, new swirls, streaks, and pockets of color are revealed as you turn away the outer material.

At approximately 7/8" diameter × 5-3/4" long, this generously sized blank provides plenty of material for standard pens as well as many larger rollerball and fountain pen kits.

Features & Highlights

• Handmade by John U
• Cast from premium Alumilite resin
• Striking blend of purple, potion green, and dark swirling accents
• Bold Halloween-inspired color combination
• Swirling pattern resembles a magical witch’s potion bubbling in a cauldron
• Each blank has its own unique color placement and pattern
• Colors and patterns continue throughout the material
• Supplied pre-rounded for convenient mounting and turning
• Generous 7/8" diameter works beautifully with larger pen designs
• Extra-long 5-3/4" length provides plenty of material for most one- and two-barrel pens
• Sands and polishes to a smooth, high-gloss finish
• Perfect for Halloween pens, witch-themed projects, gothic designs, and colorful everyday pens

Color Palette

Witch’s Brew combines a magical mixture of:

• Witchy Purple – rich violet and purple tones that give the blank its unmistakable Halloween character
• Potion Green – vivid green with a shimmering appearance that comes alive after polishing
• Dark Accents – shadowy streaks and pockets that add contrast and depth to the finished pattern

The raw blank gives you a hint of what is hiding inside, but turning reveals a much more intricate pattern. As material is removed, the broad purple and green areas can transform into wisps, curls, streaks, pools, and swirling layers of color.

Because every blank is individually cast, color distribution and pattern will vary from blank to blank.

Specifications

• Product: Witch’s Brew Pen Blank
• Material: Alumilite Resin
• Maker: John U
• Shape: Round
• Diameter: Approx. 7/8"
• Length: Approx. 5-3/4"
• Colors: Purple, Green & Dark Accents
• Pattern: Random Swirled / Marbled
• Sold: Per Blank
• Handmade: Yes

Perfect for Pen Turning

The oversized dimensions make Witch’s Brew an excellent choice for a wide variety of pen kits, including:

• Ballpoint pen kits
• Rollerball pen kits
• Fountain pen kits
• Larger-diameter pen kits
• Single- and double-barrel pens
• Halloween-themed pens
• Witch and wizard-inspired designs
• Gothic or fantasy-themed pens
• Custom gifts and craft-show projects

The finished pen shown in our photos demonstrates just how dramatically this blank changes after turning and polishing. What begins as broad areas of purple and green becomes a deep, richly layered pattern filled with shimmering streaks and mysterious dark undertones.

A Bewitching Halloween Pen Blank

Witch’s Brew may have been created for Halloween, but the rich purple and green combination makes it an eye-catching choice throughout the year.

Pair it with Gold, Chrome, Gunmetal, Black Chrome, or Black Titanium hardware for dramatically different results. Gold components give the blank an almost magical, old-world appearance, while darker hardware emphasizes its spooky Halloween character.

As shown on the finished Diamond Knurl pen, the combination of gold accents and dark knurled detailing pairs especially well with the green and purple resin.

Handmade Means Every Blank Is Unique

Each Witch’s Brew Alumilite Pen Blank is individually handmade by John U, so no two blanks will have exactly the same pattern.

One may reveal more vivid green, another may feature larger areas of purple, while another may develop darker, moodier swirls as it is turned.

That variation is part of what makes these blanks special—your finished Witch’s Brew pen will truly be one of a kind.