I keep meaning to buy some of those like $5 bags of 100 stickers or whatever that you can find online for this reason. I love the aesthetic of something like a phone or a laptop covered in stickers, but I don't like the idea of losing one I care about, like you. So I figure if I just get a bunch without selectively choosing them, there's likely to be a number that I don't really care about and therefore won't be worried about losing that I can use to fill the majority of that sticker space with.