you know those foam pads that they sell for $60-$100 for resting on when you’re tucking?

Well I found this arm sling brace (for broken arms) at goodwill for $6

it functions pretty well, lol

Feel free to try it out
https://ibb.co/m0CBhKJ
https://ibb.co/m0CBhKJ

I always laid on my tank, I’m small though