Nadine posted a video about hair elastic that studio5 did. Here is our step by step printable version of that project. ( I have 2 on in this picture)
What you need -
elastic - lots of colors at the store
beads if you want
hot glue if you want
for a ponytail holder I used 6 inches and tied a knot. make sure you leave some tails. Easy peasy
for a head band I used 22 inches and knotted it.
If you want to add a bead I would suggest a large hole bead, the smaller hole is just difficult to fit the thick elastic through.