Nucular said:
Right, I didn't read the accounts properly after wondering that, apologies.
That to me then - assuming the accounts are valid (and Radin has been pretty good regarding other 'psychic' phenomena in the past, IIRC, though that doesn't necessarily prove his reliability in this case) - reduces the explanation of the bowl-bending phenomenon to about two of the already suggested possibilities:
1a) Gimmicked spoon: spoons made of weird metal Houck worked with at Boeing
1b) Gimmicked spoon: as Ed suggested, a very thin bowl
2) An actual 'psychic' phenomenon
Yes, I believe these are the options we're left with (although, no doubt, another clown is likely to enter the thread with "You idiots, it was sleight of hand.").
In the case of Radin, he has posted close-ups of the spoon (
http://www.psiresearch.org/spoonname.jpg). Of course, Houck could have manufactured a spoon with the print "Silver overlaid" and "Oneida" on the back. But if we consider the number of different spoon and fork types he presumably would have to manufacture so as not to look suspicious at a party, it seems at least less likely.
In addition, unless the Arizona professor (and apparently very many others) are in collusion with Houck, where did he get the special metal? (One could also ask why the professor, who was purportedly agnostic about the subject, would bother to fool his students, but that's all too easy to answer in any number of creative ways).
For a more down-to-earth (if less implicitly credible) source, check out
http://www.fork-you.com/forkhow6.htm. She brought her own spoon to the party, and was only later able to bend it. Like Crichton, she sees nothing strange about it after the "initial euphoria" wore off and she ran out of spoons

. I am
not trying to use her as a credible source, but her entire account is very interesting nonetheless.
These arguments (especially #2) make option 1a seem less likely.
For 1b, again consider Radin's quote:
All of my attempts to repeat this effect later, both with and without the use of force, failed.
Or more pertinently, Crichton:
I felt annoyed. The hell with it, I thought, I'll bend it with sheer force. I tried: the neck of the spoon would bend, of course, but the bowl itself wouldn't bend. I was hurting my fingers trying.
This latter quote dissuades me from readily accepting 1b.
If anyone lives in or near Ohio, check out his party on July 16 and see what you can find out. If anyone's in SoCal, there's another one coming up in October. Oh yeah and if anyone is near Kansas City, MO/KS, maybe you can help me try to organize one to confirm or deny these admittedly strange claims.