She also has a nice online store with signed prints (https://kareprints.com). I bought two a while ago and I still enjoy them, framed in my living room, every day.
A signed print by the original artist is a pretty cool artifact - and unlike an NFT you can actually hang it on your wall!
The Happy Mac icon is such a welcoming bit of pixel art - a modern classic. It's also interesting to see Steve Jobs in icon form in the 1984 set.