RICHARD OSTERLIND’S WHISPERING DIE MENTALISM EFFECT THIS IS AN AWESOME MENTALISM EFFECT THAT IS BRAND NEW. IT WAS PURCHASED FOR MY CORPORATE WALK AROUND SHOWS, BUT HAS NEVER BEEN USED. Osterlind Mysteries presents the newest addition to its HEIRLOOM line…and possibly the greatest pocket mental effect of all time. This is the effect Richard Osterlind has been carrying with him and using for over 40 years! It is one of the most baffling and mind-blowing pocket mental effects you will ever use. Here’s what happens:A spectator puts a regulation casino die into a small wooden box and notes the number on top.