Dolphine lamp with base

For the 3D lithophane dolphin lampshade from https://www.thingiverse.com/thing:2745631

I needed a good and nice base.

The base I used is from https://www.thingiverse.com/thing:3731147

I adjusted this ring by:
* Removing the outher stands.
* The hole for the socket is now 44mm.

So I can place the lamp and the socket properly on the base.

With this modified ring everything can be mounted securely.