This is a modification of my other Wingspan magnetic egg and token box. (shown for comparison in some of the pictures. https://www.thingiverse.com/thing:4190509 )

When the new Oceania expansion can out, it included more eggs and new nectar tokens. I expanded my box to accommodate all the eggs and tokens from both expansions, and sized it so that it would still fit in the WIngspan box. The width of the box pretty much was at the maximum of my Prusa MK3S.

Asia Expansion Note I am not redesigning this based on the Asia expansion. No, all the new eggs and tokens will not fit if you try to put them all in. But I find that you don't need them all. I've never run out of resources when playing, and you can just add in a few more of each thing until you can't add more. Asia comes with twice as many eggs of one color, 30 instead of 15. So I just added 15 of the new red eggs and it's fine.

Of note, the hardest part is the magnets. The holes are left in the box corners to install 6mm x 2.75 mm magnets. I bought them as 6x3, but measuring them, they seem to actually be about 2.75mm thick. With the way the plastic is laid down, it's hard to get the holes the perfect size. They came out slightly small for some magnets, and not others. There is some variability in the magnet size. Where the holes were a little small, I just used a metal tool to scrape around the opening a little until it would fit better, and then put a small drop of gorilla glue in the hole, and pressed the magnet in.

You have to be very careful about the polarity, which side of the magnet goes in, so that the box sections will attract and not repel.

Also, the text on the lid is slightly raised. If you can do a color change where it starts, you can get it to stand out like I did in white.