A friend and i went on our break at walmart when we noticed a silver looking object crossing the sky. the sun was reflecting off of it as it spun. at first i thought it was a helium balloon because of the color but then my friend said it stopped moving. i then went to activate my video recorder on my phone but then noticed a v shaped formation of white lights crossing the blue sky. i started recording them instead of the the silver thing. the v shaped suddenly changed into a c shape. as if on command. i knew they were not birds because they were moving too fast and these things didn't have wings flapping. they also stayed in perfect formation even when changing shape. they looked like tic tacs or oval shaped. no sound or exaust.