Dry Ice Isn't really that expensive at all and can be found in many of the
chain super markets. I buy it at least once a year around Halloween for the
infamous "Witches Brew" punch for our work party.

--
Thanks,

Jeff
'85 GL (Gertie)
'90 Carat (Grover - the noble parts donor)
'86 (We call this one Scrap)
'78 Bus (Melissa) Patty's Bus