I really liked this Raspberry Pi Cam mount (https://www.thingiverse.com/thing:2842300) but my Pi Cam 2 didn't fit in the enclosure so I found an enclosure that did fit (https://www.thingiverse.com/thing:1738064), modified the front cover to remove the bolt holes, and grafted the back cover onto the original bracket. I also attached the cable management loop from the new enclosure at the bottom of the face plate which I think works quite well to keep the cable up and out of the way.
You'll need all of the parts from the source Pi Cam Mount (https://www.thingiverse.com/thing:2842300) except for the front and back cover. Then print the attached front and back cover.
The back cover bracket can be printed as shown in the model or upside down. When printed as shown in the model, a lot more support is needed but the end result looks nicer. When printed upside down, a lot less support material is needed but the front of the bracket (where the camera sits) will be a little rough due to it coming in contact with the support material. The pictures above show the result of the upside down print so that you can decide which way you want to go.