I think the title says it all.
I've never come across a boxed example of the models you list, and it's not for the want of looking. The nearest I found over a year ago was a boxed G3 Pismo and a boxed G3 clamshell, both of which I snapped up. The white iBooks G3 and G4 do appear a little more frequently here in Europe. I also have a superb boxed G4 iBook. Boxed MacBooks too appear on the market from time to time.
I occasionally purchase empty Apple/Mac boxes, if the price is correct, and have been given several.