Same yarn, Berroco “Link”, a super chunky yarn.
One was knit flat, the other was knit circular. Bottom up. The yardage was used knit up to the last 6″
10 mm needles,
Cast 22 stitches.
Row 1, knit
Row 2, *k1, yarn over * to end of row.
Repeat these 2 rows, until a couple of yards/metres remain.
Decrease by “k2together, yo* repeat. ( if enough yarn, knit another knit round.)
Secure remaining stitches to close up the top.