Seagull Egg Box

This holo box of not actual eggs, but sweets, are sold is Iwate and features Shuckle, Omanyte, Larvitar, Shieldon, Aron, Geodude, Rockruff, Aerodactyl, Nosepass, Tyrunt, Rhyhorn, Onyx, and Kabuto.

It seems it was first released in 2024¹, but I got my box in 2026 and they have a blog post from around the same time so they might still be sold.