Yes, the title IS a Fall Out Boy lyric, but it's what inspired me to make these, so merh.
Please note that the button is not functional, and is just there to make everything all pretty.
Also note that I made these for myself, and I have some pretty small hands and wrists. Larger size is in parenthesis. If that still doesn't fit you, just add to your cast on amount.
U.S. Size 4 (3.5 mm) needles (or size to get gauge)
Worsted weight yarn, maybe 20yards per wristband
1 button per wristband
Gaugeis 5 stitches and 10 rows per inch
Cast on 30 (40, 50) stitches.
St st 10 rows
Sew up seam
Find the place you want the button and sew it into place.