I remember saying the Weasel could be one, I didn't know but FirstFlight came in with other details (when the original guess it thread was), I still think it's a '92/'93 bike though.
Lets go of and find the original thread...viewtopic.php?f=1&t=80626
(can chat about it more on there
The bottom picture is a different bike I assume was also a trials as it looks pretty much like a BMX, older 89ish ? with the dual U-brake style.
But that is all I remember about it, was a short brief post.viewtopic.php?t=54019
(can add more to that post if you know anything)