Mount the tension rod or curtain rod over the window.
Measure the distance from the rod to the point you want the ribbon and bead curtain to end. Add about 8 inches for tying knots.
Cut lengths of ribbon in the length you determined. You will need enough ribbons to tie side-by-side so they touch along the tension rod or curtain rod.
Tie the lengths of ribbon to the rod so they sit snugly beside each other and hang straight down from the rod.
String the beads onto the ribbons to fill each length of ribbon with beads. Make each ribbon look different with a different arrangement of beads or make them all look uniform.
Tie the ends of the ribbons in a double overhand knot to hold the beads securely on the ribbons.