My friends attended the party last night. Both skeptical friends (both are Ph.D. students) are of the opinion that "something very interesting" happened. Both were briefed on potential cheating methods mentioned here, and were asked to stay vigilant.
Both experienced the metal becoming soft and pliable, and could twist the handle around with ease. Both are unwilling to completely rule out "normal causes," as they are physically able to perform similar feats on identical spoons, albeit with great effort.
They also witnessed an elderly woman next to them collapse the bowl of a spoon with apparently no effort, and no help. They thus feel they can rule out the possibility of Mr. Houck performing the feats for the audience members, but can draw no conclusions from this, as they could not confirm that the Oneida silver-plated spoon had never been tampered with. Their attempt to unbend the same bowl was unsuccessful, as was their attempt to perform the same feat on another spoon from the batch. Inconclusive.
Friend 3 also reported the metal becoming soft, and was able to perform twisting feats that apparently lie outside her normal range of strength. A later attempt by her to unbend the silverware failed, and she was also unable to cause the same outcome on an identical piece of flatware using "normal" methods.
All utensils were brought to the party by my friends, and never left their sight or hands.
Consensus: Further investigation warranted. They believe their experience is in agreement with Radin's and Crichton's testimonies.
Unfortunately, my friends are not interested in writing up a report themselves. I am relaying what they have told me, and will provide pictures when they are available. This post is meant as nothing but my report of their experience