I made one. From parking the car to driving away, I can change a wheel bearing in 45 minutes. No need to remove the struts, suspension geometry is unchanged. If I ever need to change a bearing whilst on a trackday, I can do so and lose less than an hour

I mount the brackets etc to the hub on the car, pull out the old bearing and push in the new one

Pressing new flange into place

New wheel bearing and flange, fitted in situ B)

The `thing`