Houdini explained some of his tricks in books written for the magic brotherhood throughout his career. In Handcuff Secrets (1909), he revealed how many locks and handcuffs could be opened with properly applied force, others with shoestrings. Other times, he carried concealed lockpicks or keys, being able to regurgitatesmall keys at will.-- Wikipedia.com
Here's a diorama I made in 2005 based on Houdini. I got the glass and wood diorama case from Ikea and painted it black. The skeleton is from a kit. Moss, fake roses, miniature keys were from the craft store.