Untrade-a-Box

https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png Combination
In any Chemical Combiner, mix together...
https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png Unearthly Chemical (×10),
https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png Mysterious Chemical (×10) and
https://growtopiawiki.nbg1.your-objectstorage.com/uploads/8/8f/ItemSprites.png Synthetic Chemical (×10).
This recipe will yield 1 item.

Untrade-a-Box is a block which was added during the Night Of The Chemicals update. It serves as a vault for untradable items. Players can place and remove untradable items into the box, such as Growtokens or the Legendary Orb. The box cannot be traded if placed in a world or using the trade system, and cannot be dropped.

Trading the Untrade-a-Box can only be done by making it in a Chemical Combiner, smashing it and covering the item with a block, before selling the world, similar to the Zeus' Lightning Bolt. Otherwise, it cannot be traded.