Because they had to tell everyone about the rock party somehow.

A mailbox on a prehistoric lot looks very out of place, so I started working on this. This was the hardest thing I've ever made for this game. There are multiple geometry states, some of which only appear on certain LODs and not others, and some of which only appear on certain mailboxes and not others. Meaning that I had to make *so many* meshes, and then, because of some of the issues that came up (and there some serious issues), some had to be made multiple times. And then remade again. And again. And then edited again.

And when I didn't get it exactly right, it crashed my game. Two different mostly completed versions of this thing crashed my game. Then, once I solved the crashing, instead of staying put, the mailbox rose into the air and bowed to my sim when she 'opened the door' -- https://www.patreon.com/posts/my-game-did-not-100576802 -- and while I was trying to fix that, it instead rose in the air and floated through her. Then it sank into the ground. Etc.

I almost gave up, and I did make an un-animated mailbox, which doesn't show you when you have mail, but on my last try, it worked. So here it is.

When there's no mail, the feather lies across the empty bowl.

When there is mail, the feather stands up and there are shells in the bowl, with one positioned to hold the feather in place.

When mail is delivered or when your sim gets the mail, they will reach over the bowl.

All options that appear on basegame mailboxes should also appear on this one, including modded options. (Yes, MCCC shows up.)

48 swatches, all the possible combos of:

6 colours of stone (white, tan-brown, orange-brown, dark brown, grey, almost black)
4 colours of bowl (grey & blue/green, black & blue/green, black & purple, black & red)
2 colours of shells (orange, pink)
1 red feather with a green edge

BaseGame Compatible. Can be found by searching 'mailbox' or by looking with the other mailboxes (by using the eyedropper on an existing mailbox or by looking in Miscellaneous Appliances).

Make sure to leave room at the front of the mailbox for sims to interact!

Known issues:

The sound when a sim is putting something into or taking something out of the mailbox is not changed. Think of it as the shells moving around instead of the door opening.
Sims will still handle paper mail when they have visible mail, for example if you tell them to sort junk mail.

Cave-to-Cave Shell Delivery