For really cool and minimal decorations these dotted lines totally hit the spot.
Cut some circles out of card stock....any size will work, it's up to you.
Sew them together using regular thread, and tie a knot at each dot to keep them spaced.
I used a book as a spool to keep it untangled. It can easily travel to a party location like this.
Hang it up
It's really easy and really cute.