I recommend using 1" bias tape so that you have a good 1/2" of wiggle room once it's folded in half. I just sewed down the line making a string of flags as I went, eyeballing the distance between flags.
If you're reading this blog, making these crafty decorations is likely within your skills set. This makes a great set of reusable party decorations for very little effort. Let me know if you give it a go! I'd love to see your pictures!
I'm linking up with Somewhat Simple. It seems they have an Amazon gift card giveaway, so here's my entry comment for them: My entry into Strut Your Stuff sponsored by Appliances Online and the Bosch Washing Machines.