Argon made a
hack which can give correct tokens to CAS-made vacation locals.
I found Madame Mim's post that said she used Theo's sim surgery tool to clone dummy islanders over the ones in the game, but I don't know how to do that.
You need
Theo's Alternate Sim Surgery Plugin to use that technique. Unlike standard Sim Surgery, you don't have to make a useless dummy Sim. You can copy Bodyshop-made Sims onto your vacation locals.
As I already had bunch of fugly vacation locals foisted on me, and I didn't want to Delete'2 50+ characters, I used Theo's tool instead of Argon's hack. Applying Pescado's clothingtool after performing Sim Surgery cleans up character files. So far I didn't encounter any problem with Theo's tool.