Starship Asterisk*

Yes, push pins sounds good. And the Kapton tape holds the pins in place until the lid is attached to the venting hole. The white disc under the tape could be made of e.g. Teflon or ceramic. In case of Teflon the Tape will not stick very well, unless the surface would have been activated, with plasma...

The color of the "emblem" gives a clear hint towards Kapton tape. There are several layers of the transparent amber film on each of the discs overlapping, resulting in the sun-like emblem. Additionally, you can see some of the tape wrapped around the mounts/sticks on top of the capsule, pr...