disclaimer: do not attempt if you have any sort of blood pressure or cardiac issues or anything that might be aggrivated by a bit of orothostatic hypotension.
First, inhale for 4 seconds, completely filling your lungs, then exhale, completely emptying your lungs. Repeat, taking one second off the inhale each time, but keeping the exhale at 4 seconds.
The effect is amplified if you bend over while doing it and stand up quickly after.
But you can find a boyfriend and get him into blacksmithing so he can make you one. I feel like a ton of men won’t need their arms twisted much to do it (myself included).