A simple garter stitch tam worked in the round.

SIZES: One size
Finished Measurements: 201⁄2” circumference

MATERIALS:
Kumara by Classic Elite (85% extrafine merino, 15% baby camel; 50 gram ball = approx 128 yards)
• 2 balls 5709 Wild Duck
Needles:
• One 16” circular each size US 5 and 8 (3.75 and 5 mm)
• One set double pointed needles (dpns) size US 8 (5 mm)
Or size to obtain gauge.
• Stitch marker
• 2” pom-pom maker
• Tapestry needle

Also, see online tutorial for Pom-pom making.