The basket of throws
Secret Agent Kit: Message Decoder « Stitch-Craft - Write a message in light blue pen, then scribble over it w/red pen; when you hold red film over the paper, the message is revealed!
Tampa Bay Escape Room puzzle
Sign Language Panel - Secret Message Board - Escape Room Puzzle - Escape Room Prop
False Bottom Wooden Crate More
La cartes d invitation anniversaire superbe
Jenny Duke substituted Scrabble Tiles in the Grammar Guru Breakout. Cool idea! Click to see the photo.
Make Invisible Ink To Write and Reveal Secret Messages: Iodine solution reveals invisible ink messages written using corn or potato starch.
How to Make a Cryptex
How escape room developers use tech, theater, and game design principles to make puzzles you can actually solve but can't break.