Searching for a Lava Simplex Wave Machine ala the series "In Treatment" for my Psychologist wife to put in her office...Any leads? Ya know if your gonna do it right ya got to ask the experts ;-) Thanks so much!

Was going through my box of instruction manuals earlier looking for something when I came across the instructions for my Glitterbaby, my first ever Mathmos lamp. Why they are not in the box for the lamp I have no idea, had a flick through and I've got the receipt for when I bought it, was the 11th July 1998 and I paid £39.95, also enclosed is a small booklet showing some of the Mathmos range at the time including the Lunar, if only I had known then what I do now!