Pen sleeve (AKA as pen wrap or pen cover for Pilot G2 Pens) designer is Kristy Zgoda. Pattern available: https://www.etsy.com/listing/565675688/monarch-sky-pilot-g2-.
pen-cover-pattern?ref=shop_home_active_9

Materials used - size 11 Miyuki Delicas - used suggested colors.
DB-0010 - Opaque Black
DB-1132 - Opaque Canary
DB-0727 - Opaque Light Siam
DB-1133 - Opaque Madarin
DB-0610 - S/L Violet
DB-0031 - Bright gold 24K plated
DB-0310 - Jet Black Matte
DB-1587 - Opaque Matte Agate Blue
DB-0351 - Matte White
DB-1517 - Opaque Matte Light Sky Blue
DB-1583 - Opaque Matte Mandarin
DB-0200 - Opaque Chalk White
DB-0752 - Opaque Matte Orange
DB-0722 - Opaque Orange
DB-0757 - Opaque Matte Light Siam

Fireline - crystal
Pilot G2 Pen