Spider Silk Side-Hustle: Royalties or Crickets?

I’ve got a fun little Etsy shop where I sell what looks like enchanted spider silk it’s a hit with the fantasy crowd! But it got me wondering: ethically speaking, should I be paying the spiders royalties for their hard work, or is it enough to just toss them a few extra crickets as a thank you? I’m curious what others think, especially anyone with experience in fantasy crafts or animal ethics.