I used
1/2 meter of colour one fabric
1/2 meter of colour two fabric
1 pack of bias binding
1 spool of thread
You can use as many colours of fabric as you want, the other bunting I made was three different fabrics which looks great, or if you have lots of scraps of fabric lying about use them up instead!
Cut out the fabric in the shape of your choosing - I did triangles. I decided to do it double sided, if you are doing this remember to fold the fabric rights sides together so the outline is on the reverse for you to follow when you are sewing.
If you don't want to use fabric you can give paper bunting a go, which is a great idea for parties or special occasions. Cut out triangles and fix to some cool tape or fold it over some funky string and hang it up! Here is a good tutorial for paper bunting if you want to try it.