Brompton Be Seen Lights for 3rd party seats like Brooks regular and telescopic seat post

Love these new Brompton Be Seen lights but I'm rocking Brooks seat so no mounting point for the rear light, also because I use under the seat bag I've designed seat post mount for it.

Designed specifically for telescopic seat post but it should fit regular seat too in regards of diameter (might stick out a bit too much and nothing but friction prevents from spinning around, perhaps one day will redesign to work better with regular seat post).

I also don't use seat post bung so printed my one from TPU so it works like a “soft stop” when seal post is released and it's thick enough so it doesn't touch the ground at the bottom.