Mailable vs Unmailable MyLEGO Items

The differences between these two types of MyLEGO items seems straight forward enough: mailable items are brown, unmailable items are grey. Mailable you can put up on MyLEGO Trade Modules or send to your friends. Unmailable can be expensive and take time to get.

Important difference when using an item to click on a module:
- mailable items get used up.
- unmailable items do not get used up.

No difference when using an item to build a module:
- mailable items get used up.
- unmailable items get used up too.

For example, Worker Bees are mailable items. If you click on a Bee Battle Module, it costs one Worker Bee and the bee gets used up. You need to keep making them as you battle.

However Treason Beavers are unmailable. You need to make one Treason Beaver before you can click on an Electric-Dam Module, but they don't get used up. Once you've made one Treason Beaver, you can click a Dam Module as many times as you have votes without needing to make more Treason Beavers.

Giants are also unmailable items. Once you've made a Giant, seek out someone who has a Millstone Hurling Module up. Click it as many times as you have Millstones and win Blue LEGO Bricks (hopefully). After accumulating a pile of Blue LEGO Bricks, spend the Giant on building your own hurling module.