Here it is, the challenge nobody asked for! Can I get L-band satellite data using an umbrella covered in foil tape? It turns out, yes I can!
I was able to download images and weather data from GOES-East, NOAA satellites, and Russian METEOR satellites. I also got a little bit from some other satellites but the signals weren't as good.
Here's the stuff I used (these links give me a commission if you buy stuff through them, but the price to you is the same!)