Will this kill my fish?! >())))8)?

I have a Beta Fish named Liberace, who I have had for about a year. I was wondering, would it hurt my fish if I put glitter in his bowl? I would wait until it all sunk to the bottom before I put the fish back in. I just feel that it is much more fitting for a Beta named Liberace to swim with glitter at the bottom of the bowl instead of boring old gravel. I feel that with the glitter, his name fulfill the prophecy, non?
GUYS THIS ISN’T A JOKE! Ever since I pierced Liberace’s fin, he has been feeling really down and I feel like this change in environment will really pick up his spirits!