materials
colour A: 1 x 25gr Jamieson Shetland Spindrift 1190 (burnt umber)
colour B: 1 x 25gr Jamieson Shetland Spindrift 135 (surf)
closed end zipper, 18cm
sewing thread matching colour A
basting thread

Skills required to make this pencil case:
reading charts
stranded two-colour knitting, both in-the-round and flat
decreasing
increase by making a half-hitch loop (also known as backward loop and e-loop)
installing a zipper

Magic Loop knitting http://www.knittinghelp.com/videos/advanced-techniques
Judy’s magic cast-on

Using Magic Loop and Judy’s Magic Cast-On means this pencil case is completely seamless. However, for those with a strong preference for DPNs, you can find an outline for using these instead at the end of the pattern. It does require grafting!

Update: for those who prefer a video, I have now found a Cat Bordhi video in which she shows how to do Judy’s Magic Cast-On.