Yes, it’s been done by several of us and it leaves a lot to be desired.
There’s a 3D print solution to connect two of them to one dildo adapter for more power, which is basically necessary for anal use.
One can be enough for vaginal use, at least for some, but it’s very limited even then. The resistance causes the device to heat up faster than intended.
There was a reddit post about this, seems it was removed by the mods recently but OP has comments about the setup so the helpful info is still in the thread:
https://www.reddit.com/r/theHandy/comments/rfkhvn/who_says_handys_are_just_for_men/