Your customers will appreciate the challenge this puzzle offers. Money Maze Cube Bank is a clever puzzle that keeps a treasure locked up until you successfully complete the maze. Lock up whatever you like and let your clients work through the maze to access the prize. Compartment not accessible until the puzzle is solved! Brain teasers like this 6-sided cube shaped maze customized puzzle make great promotional giveaways. Puzzles are a hit at conventions, trade shows and events. Take advantage of the promotional potential this has and give away these maze promotional puzzles.