It means the trumpets have to be fashioned from one piece of silver. The trumpets had a number of purposes. On the other hand, something made out of one piece is stronger, tougher, and more durable. It's not the easy way, but it's the only way to do it. The Trumpets symbolize Leadership.
Tough decisions have to be made.
It is not necessarily the easy way, but it is the correct way. At the end of the portion we have the incident of Miriam speaking Lashon Hara about Moshe. It is the ability to give to others and to share. He can't give and if one can't give, it's as if he's dead.