There are as many ways to make a 4th of July sparkleball as bombs bursting in air or patties on the grill.  I spray-painted cups red, white and blue.  Then I had fun arranging them in red/white stripes and a blue field of white “stars.”  It’s not very sparkly, but the colors are bright and festive even when lit. See more 4th of July sparkle ball ideas on  Pinterest .  Happy 4th!