I had these on my computer forever as 3ds and just 
converted them all to vobs for convenience sake.
As far as the original source goes,this is as close as I could get
to finding it/ http://www.dewantoro.net/2008/03/19/63-fish-free-3d-model/.

Kudos to the original maker.

Thanks and enjoy.

( And if you want to complian about outdated just watch an air freshener commercial
and think who is not complaining all the way to the bank.)