What do you do if someone built something and they cant find it in their inventory?

[valerie Inshan]

check your lost and found and trash folders.

[valerie Inshan]

check your lost and found and trash folders.

[Argus Collingwood]

Did you name it something specific? If not then it is an object in your objects folder;-)

[Lyra Blackthorne]

You could try clearng cache and rebooting if you do not find it by the methods suggested already.