Sticker Mule is - was - one of the better sticker printers, be it for laptops, packages etc. That includes hologram and glitter stickers, and I will say that the quality was always excellent. They also have great deals.
And as you will know by now, one of their founders/bosses decided to go full Drumpf.
In public.
Per the company account.
On X.
I am sad to say, I have to find another place to get stickers and stuff, Redbubble is nice but no glitter :(