I'm not confident about the puppet hypothesis (while accepting others might be).
The area of the sighting wasn't impassable terrain, but it was pretty rugged scrub and the children were forbidden from going there because of possible hazards. Why take a van off-road and take out puppets there?
(Was writing this when this was posted-
But also, since publication of the above journal article I have been told by a pupil/witness that the track around the perimeter of the school cross country course - in the direction of where the children were looking - was suitable for a vehicle.
-which might nullify my concerns about the terrain. But, did any children or adults at that time say whatever they saw was near the cross-country track? When Mackie and co. check out the presumed area of the sighting, it doesn't seem to feature. No-one mentions it. I would guess that a "cross-country" track for primary school children, in a bush setting, would be quite close to the school and easily observable?)
I get the impression that the school recreation ground would have been reasonably visible from approx. 100 metres away; it was a substantial area of open ground, there were perhaps more than 200 children present, some possibly wearing brightly-coloured sun hats. They would have made
some noise. Wouldn't the school be noticeable? Puppeteers would surely be aware they might get attention.
There are no reports of anyone seeing a vehicle leaving and an engine would be audible at 100 metres. It seems improbable that a human-sized puppet could be seen in considerable detail, but that the puppeteers couldn't be seen and recognised as such, nor could their vehicle.
Some of the children present were old enough to recognise large anthropomorphic puppets, even if they hadn't seen them before (if their view of the hypothetical puppets was sufficiently clear- maybe it wasn't).
The issue of different groups of pupils drawing very different types of "aliens" -polka-dotted long-haired types, large-headed bald or short-haired types- but not both* poses the same problem for the puppet theory as for the (admittedly much more unlikely!) alien visitor theory:
In a relatively short space of time (several minutes) in a small area (the vicinity of a van or similar vehicle), distinctly different things are supposedly seen by different groups of kids. There's no overlap. Even if different puppets were revealed at different times, no-one reports type "A" and
then type "B". Yet the kids think they're seeing aliens/ a spaceship; it's hardly the sort of thing the first witnesses would wander away from in order to play football or whatever.
(Leaving the scene to get the attention of teachers/ other school staff would be understandable, but this doesn't seem to happen for several minutes).
The claimed sighting appears to have got significant publicity at the time. The puppet troupes of the type Giddierone has told us about were educational; I think it's reasonable to guess that at least some of those involved would have been in touch with current news stories. Probably they were broadly responsible, socially aware people. But no-one came forward:
Any puppeteers involved might not have realised that they were responsible for the sightings if they were reported in terms of UFOs etc., but they would be aware that they had been in roughly that area, and saw nothing. They might have put two and two together. Though the reaction of the schoolchildren might have been unfortunate, the responsible thing to do (it seems to me) would have been to come forward.
Though driving into the bush to give puppets a few minutes air seems odd to me, it's not as if the puppeteers had done anything
wrong.
Many years have passed, but no-one has come forward to say "It might have been us".
Just my musings, and appreciate others have different views about this.
*There is a possible exception,
As it happens, @Giddierone (post
# 187) found filming by Michael Hesemann, March 1997, which included this which might be seen as containing both "types",
but this was about 2 years 6 months after the event, and it isn't clear if the drawing was made c. Sept. 1994 or for Hesemann's film.
Do we know if there were any contemporaneous (September 1994) descriptions of two types of "alien" from the same child?