House Scarves

I hate working with DPNs.  I am endlessly frustrated by the variation in tension where the needles meet.  I prefer to work in the round on short circulars (<3 my Boye Needlemaster).  I do use DPNs for things too small to knit with even a 18" circular.  This is precisely why I have not tested the small and medium sizes of the tube-knit scarf.  While the patterns are listed for Gryffindor scarves, they are just as useful for any other Hogwarts House, with a color substitution. 
Sizes are as follows:
Small: Toddler (3')
Medium: Child (5')
Large: Adult (7')

Pattern written for size L(S, M)

size 10.5 needles
Worsted weight yarn (I used Red Heart in Ranch Red (MC) and Gold (CC).)

Tube-Knit trapped bar Gryffindor Scarf:
gauge: 4sts and 5 rows per inch

Using MC, Cast on 60 (20, 40) sts.
Join, being careful not to twist
Knit in the round for 15 (8, 10) rows
*change to CC, knit 3 (2, 2) rows
change to MC, knit 4 (2, 3) rows
change to CC, knit 3 (2, 2) rows
change to MC, knit 25 (15, 20) rows
repeat from * until scarf measures 7 (3, 5) feet
change to MC, knit 15 (8, 10) rows
cut 120 (40, 80) pieces of 4" yarn in MC
Lay edge flat, attach to both sides of scarf in 2-strand bundles to each pair of stitches, sealing the end of the scarf.

Double Knit Gryffindor Scarf:
Using MC, Cast on 60 (20, 40) sts.

Knit a 1x1 rib (K1, P1) across, slipping the first stitch of each row knitwise.
Repeat for 15 (8, 10) rows
*change to CC, work in established pattern for 3 (2, 2) rows
change to MC, work in established pattern for 4 (2, 3) rows

change to CC, work in established pattern for 3 (2, 2) rows

change to MC, work in established pattern for 25 (15, 20) rows

repeat from * until scarf measures 7 (3, 5) feet
change to MC, work in established pattern for 15 (8, 10) rows
cut 120 (40, 80) pieces of 4" yarn in MC
Lay edge flat, attach to both sides of scarf in 2-strand bundles to each pair of stitches, sealing the end of the scarf.

*Note*
For either pattern, to switch to a first- or second-year scarf (even stripes), ignore the color changes in the pattern, and instead make 4" (2", 3") stripes of each color, beginning and ending with MC.  The tassels should alternate colors, requiring 60 (20, 40) 6" strands in each of MC and CC.