I know, I know, you're asking yourself how it can be period-appropriate to be wielding a baguette as a weapon at the Battle of Stirling Bridge. Just remember, the Norman Invasion had occurred over 200 years prior. The first Eurozone was already being tried!
Oh, and coconut shells were commonly found in the forests of the British Isles. They were thought to be carried there by migratory birds. Cinematic records support this theory.