They're all on github.com, and you probably have to compile them, I doubt that pre-compiled version are being distributed yet. If you're not experienced with compiling, this might seem difficult.
Indeed, this was the point I gave up on the idea for now!
It's not that difficult to compile something, there are plenty of youtube tutorials out there. I will try this myself when I have some time and make a post explaining how I did it.
Also, once you get it working, you can try buying some actual goods for actual money. If you want to play it safe, in the blockstream shop, you can buy some low value items like some t-shirts and stickers:
https://store.blockstream.com/
It's all they have now.
There was a guy that bought a router on TorGuard so there are bigger purchases being done successfully already.
