I hooked this up to my Christmas tree lights. Put a new contact in my phone (linking to own number) called "santa's elf". Anytime a text comes in with the word Santa, it turns on.

This Trigger fires every time you receive an SMS on your Android device that matches a search you specify.

This Action will turn a WeMo Switch on. If the WeMo Switch is already on, it will remain on.

Text Santa's elf to turn on lights