Buy ‘ink pen’ with Bitcoin – Spendabit

Integra Retractable Gel Ink Pen

$9.99 at Newegg

Integra Retractable Gel Ink Pen

$9.99 at Newegg

SKILCRAFT AlphaGel Ink Pens

$21.99 at Newegg

Integra 1.0 mm Tip Ink Pen

$10.99 at Newegg

Integra 1.0 mm Tip Ink Pen

$10.99 at Newegg

Integra 1.0 mm Tip Ink Pen

$10.99 at Newegg

FriXion Gel Ink Pen Refills

$5.99 at Newegg

SpyX - Invisible Ink Pen - Black (Invisible Ink Pen)

$14.39 at Overstock.com

G2 Retractable Gel Ink Pens with Black Ink

$41.99 at Newegg

Invisible Ink Pen with Ink Revealing LED (2 Pack) (LED Gadgets Category)

$12.95 at Gadgets Direct

SKILCRAFT Vista Retractable Gel Ink Pens

$32.99 at Newegg

0.5 millimeters Black Gel Ink Pens (12 Pen Pack) (Office Stationery Category)

$19.95 at Gadgets Direct

BL630 Universal Capacitive Stylus Pen / Black Ink Pen -- Black (Mobile Phone Accessories Category)

$16.95 at Gadgets Direct

Ou-lisheng FH486 Digital 0.8 Inches LCD Voice Recorder Plus Black Ink Pen -- Black (8GB) (Digital Voice Recorders Category)

$106 at Gadgets Direct

SKILCRAFT AlphaElite Gel Ink Pens

$25.99 at Newegg

Pilot B2P Bottle-2-Pen Recycled Retractable Gel Ink Pen Purple Ink .7mm (Purple)

$5.54 at Overstock.com

SKILCRAFT AlphaElite Gel Ink Pens

$25.99 at Newegg

EnerGel Needle Tip Liquid Gel Ink Pens

$30.99 at Newegg

Pilot G2 Retractable Assorted Gel Ink Pens (Assorted Ink, Fine, 3 per Pack)

$11.09 at Overstock.com

Invisible Ink Pen (Torches - UV Category)

$6.95 at Gadgets Direct

SKILCRAFT AlphaGel Ink Pens

$21.99 at Newegg

Ou-lisheng TJ142 Digital 0.8 Inches LCD Voice Recorder Plus Black Ink Pen -- Silver (8GB) (Digital Voice Recorders Category)

$106 at Gadgets Direct

Pilot B2P Blue Ink Retractable Fine 0.7mm Gel Ink Pens (Pack of 3) (Pack of 3 Pens with Refills)

$15.39 at Overstock.com

Pilot FriXion Clicker Erasable Fine Point Black Gel Ink Pen, Each (Gel Ink Pen, Fine Point 0.7mm, Black Ink, 1 Each)

$18.97 at Overstock.com

He-ro-GD NL993 Stainless Steel Black Gel Ink Pen / Sign Pen -- Silver (Office Stationery Category)

$18.95 at Gadgets Direct

Pilot FriXion Clicker Erasable Fine Point Red Gel Ink Pen (Gel Ink Pen, Fine Point 0.7mm, Red Ink, 1 Each)

$22.19 at Overstock.com

SKILCRAFT Vista Retractable Gel Ink Pens

$32.99 at Newegg

SKILCRAFT Vista Retractable Gel Ink Pens

$32.99 at Newegg

BZ299 Horses Pattern Aluminium Alloy Black Gel Ink Pen Sign Pen -- Black Plus Bronze (Office Stationery Category)

$28.95 at Gadgets Direct

0.3 millimeters Black Gel Ink Pens (12 Pen Pack) (Office Stationery Category)

$19.95 at Gadgets Direct

Pilot FriXion Ball Erasable Gel Ink Pen (0.7mm Retractable Gel Pen, Purple Ink)

$9.98 at Overstock.com

EF910 Universal Capacitive Stylus Pen / Black Ink Pen -- White (Mobile Phone Accessories Category)

$16.95 at Gadgets Direct

SKILCRAFT AlphaElite Gel Ink Pens

$25.99 at Newegg

JE616 Toilet Plug Black Ink pen -- Black Plus Green (Office Stationery Category)

$15.95 at Gadgets Direct

Pilot FriXion Clicker Erasable Point Blue Gel Ink Pen, Dozen (Gel Ink Pen Fine Point 0.7mm, Blue Ink, 1 Each)

$15.89 at Overstock.com

Pilot FriXion Ball Erasable Gel Ink Pen (0.7mm Retractable Gel Pen, Pink Ink)

$9.44 at Overstock.com

EE124 Toilet Plug Black Ink pen with Base -- Black Plus Yellow (Office Stationery Category)

$14.95 at Gadgets Direct

FriXion ColorSticks Erasable Gel Ink Pens, Black, 0.7 mm, 36/Pack 57098

$45.99 at Newegg

ZD227 2 in 1 Capacitive Touch Screen Stylus Pen Plus Black Ink Pen for iPhone / iPad -- Black (Mobile Phone Accessories Category)

$13.95 at Gadgets Direct

ZC924 M and G AGP81601 0.5 millimetres Comfortable Grip Red Gel Ink Pen -- Red (12 Pieces) (Office Stationery Category)

$33.95 at Gadgets Direct

Uni-Ball Signo Gel GRIP Roller Ball Blue Ink Pens (Pack of 12) (uni-ball Signo Gel GRIP Roller Ball Pen (Pack of 12))

$26.99 at Overstock.com

Parker IM Premium Deep Gun Metal Chiseled, Parker 5th Technology Ink Pen with Medium Black refill (S0976100)

$47.70 at Real Watches

Cricut Infusible Ink Pens (0.4), Basics (5 Ct) (Pens)

$17.45 at Overstock.com

HC647 Gel Ink Pen -- Black Plus Transparent White (12 Pieces) (Office Stationery Category)

$20.95 at Gadgets Direct

M and G BS624 1.0 millimetres Plastic Large Capacity Black Gel Ink Pens -- Grey Plus Black (12 Pieces) (Office Stationery Category)

$28.95 at Gadgets Direct

DB332 M and G 0.38 millimetres Amused Expression Face Black Gel Ink Pen -- Black Plus White Plus Yellow (12 Pieces) (Office Stationery Category)

$21.95 at Gadgets Direct

Uni-Ball Roller Grip Black Ink Pen (Pack of 12) (uni-ball Roller Grip Roller Ball Pen (Pack of 12))

$26.99 at Overstock.com

LA-IX-GD LD353 Aluminium Diamond Head Self-Defence Tactical Black Ink Pen -- Brown (Office Stationery Category)

$32.95 at Gadgets Direct

UG347 M and G AGP81601 0.5 millimetres Comfortable Grip Black Gel Ink Pen -- Black (12 Pieces) (Office Stationery Category)

$33.95 at Gadgets Direct

M and G DR324 0.5 millimetres Blue Gel Ink Pens -- Blue (12 Pieces) (Office Stationery Category)

$22.95 at Gadgets Direct

M and G DX954 Erasable Gel-ink Pens -- Transparent Plus Black Plus White (2 Pieces) (Office Stationery Category)

$12.95 at Gadgets Direct

XS507 Toilet Plunger Shaped Black Ink Pen -- Yellow Plus Black (Office Stationery Category)

$15.95 at Gadgets Direct

HU511 Yong-Neng 0.5 millimetres Black Gel Ink Pen -- Black (12 Pieces) (Office Stationery Category)

$20.95 at Gadgets Direct

ZZ675 Creative Butterfly Gel Ink Pen with Magnetic Sticker -- Orange (Office Stationery Category)

$10.95 at Gadgets Direct

Pilot G2 Premium Retractable Assorted Gel Ink Pen (Pack of 20) (Assorted)

$41.99 at Overstock.com

DI875 Missile Shaped Plastic Gel Ink Pens -- Colour Assorted (2 Pieces) (Office Stationery Category)

$9.95 at Gadgets Direct

"Dr. Grip Frosted Advanced Ink Pen, Green Barrel, Black Ink, 1mm"

$10.79 at Overstock.com

YH156 EDC Aluminium Outdoor Self-Defence Tactical Black Ink Pen -- Black (Office Stationery Category)

$37.95 at Gadgets Direct

Dual Tip Retractable Stylus Black Ink Pen (Pack of 2) Assorted Colors (Black)

$7.49 at Overstock.com

LA-IX-GD XA163 Tungsten Steel Head Outdoor Self-Defence EDC Tactical Black Ink Pen -- Black (Office Stationery Category)

$38.95 at Gadgets Direct