Step 1: Pick a boomrang
1. Find a obsolete antenna .
2. Find the boomrangs on it .
3. Pick them ! (Pick all , you may lose your own !)
Step 2: Paint it !
1. Paint the boomrang with a spray color , for example I use Red . Remember the best distance for painting : 25-30 cm .
2. Wait until your boomrang be dry .