MMMMMmmm, Interesting!
I think we're being a bit hard on Wolfgang here. He's been turning for about 18 months, it is only to be expected that his turning will be influenced by other people, wether it was intentional influence or not.
I think thats a really stunning Idea from John B-Aitken! and I would advise you Fuzzy to rework the piece as stated unless you particularly love it like it is. At the end of the day it is your work. PS for 18 months you are doing bloody well!!! - keep it up!!!
On an OBJECTIVE level (NOT pertaining to anyone personally in any way):
I don't think I agree with ALWAYS crediting work - there has been a huge amount written on american sites over the last year on this, basically;
1. if everyone can see the influence in the piece (for example everyone who looks at it instantly knows that a "Drozda style finial" has been influenced by Drozda) then there is no point in siting the influence - Cindy herself says this. (her style has become part of mainstream woodturning).
2. If a work is
a) so poor as to not be close to the original artist's work.
b) so good that the work has gone beyond the original artist and has taken on a life of it's own, then I would argue the original artist need not be cited.
3. To cite every influence would end up being silly, again as Cindy said recently (and she put it rather well) - if she cited every turner that influenced her, then there would be a list of dozens of people after every piece she made.
There are of course times when it is right to cite people for example the terrible Douglas Fisher copying business (although that was outright copying rather than influence). To use a personal example I recently did a finial without realising that it was the signature finial of Scott Hackler, he has kindly allowed me to carry on using the design with his blessing but asked that I cite him - as there are so few people doing his finial, my work could be mistaken for his. That is a situation where it is important and right to cite other's work.
It is easy to forget that when we start out turning; we learn by copying others work (I did - and sometimes still do, to understand a technique). We then go on (if we work hard) to develop our own turning style which can take many years
or decades even! some people never do find their own voice.
I am often amused by the turner that said " The Chinese have been copying my shapes for centuries!"
I would urge you all to view the following video - I have found it to be fascinating - in fact I would go so far as to say it has changed my life as an artist!
http://tedxtalks.ted.com/video/TEDxKC-Austin-Kleon-Steal-Likeregards Jason