I have an idea for a sticker, but I don't have the tools/time to make it. It was inspired by this message on Reddit:
My idea would be a sticker of a very simple-looking graph (in a style similar to nostr:npub14hn6p34vegy4ckeklz8jq93mendym9asw8z2ej87x2wuwf8werasc6a32x's art), with one line going steeply up and to the right, labeled "prices", and another line going slightly up and to the right, labeled "wages". On the far right, between the 2 lines, would be a caption like, "Inflation makes you poorer. Opt out here:", and then a QR code to your website.
If you don't want to do that for a sticker, then I'll try to make it myself, if I get the chance. Just wanted to give you an idea. 🙂