Twist and shout!
I just cut a hole in the middle of the table cloth, sew a 'tunnel' for the elastic and fed the elastic through it. You don't have the do any sowing in the hem-area, because the edges of the table cloth are propably finished already :)
My boyfriend is responsible for the photos, including the storm trooper cencorship :D (On my request though.)
Aino posted this project as a creation without steps
Here are some similar tutorials to help you make this one!