Usually, the system will come with small flags that can be placed where the cable is buried. (professorshouse.com)
Beginning in May in honor of Memorial day, Flay Day, and the 4th of July I have bunting and flags all around the house — the back door, the front door, small flags in all of the planters, flag pinwheels, etc. etc.. (theinspiredroom.net)
 Note the streams of small flags draped across the main drag in town, shown in most of the pictures in this post. (grandbaymen.com)