Got $50 to spend

You can buy an indispensable product, like this:

https://www.youtube.com/watch?v=h05ZQ7WHw8Y

:P

Buy food, what else.

get an IGS Elite Subscription (70% of all proceeds go the devs). Each month you get 7+ games, https://indiegamestand.com/elite/

Also spend some on the current Groupees Be Mine Anniversary 2 Bundle https://groupees.com/bma2

Sheep plushie, biggest and fattest you can get

just do it

If you aren't sure what to do with it. I actually would suggest you give people some free games
Maybe start with me? :DDDDDDDDDD

Buy 50 copies of Bad Rats/Fortix.