Those are fanmade durable waterproof ultraviolet-resistant vinyl stickers. 11 transparent stickers (6 stickers in pack + 5 spare smaller ones) + 2 holographic stickers + 2 white vinyl stickers. 15 in total. I'm proud to say that Heart Machine folks own several sets of those and gave me permission to sell them ;))

To purchase donate $23 (around 2000₽)

Before purchasing read this: