Boyfriend got me a "massage gun" and I am pretty sure I'm the only person on earth intending to use this product in a totally non-sexual manner.
(Also, fuck is it good. Like it's just a cheap plastic thing but my back is a hot mess most days and wow did using this for like 4 minutes make a big difference. I'm eloping with the massage gun...)
During the height of my sciatica pain I used it on my butt cheek and it was amazing.
@DeliaChristina I am genuinely surprised that this works; I remember "massagers" from the 80's and they were more or less useless. But this thing slaps.