Has anyone come up with a way to layer or laminate two or more pieces of acrylic so...

1) They visually appear as one when viewed head on (ignoring the edges).
2) Using capillary method without the "blotches" or "puddles" forming.

Mechanical fasteners would give a MUCH better aesthetic look than what I've been able to come up with so far.

They don't HAVE to be physically connected, just stay sandwiched together.

Clamping on one (unseen) edge I think would begin to separate on the opposite end over time.

I'd rather not create some sort of frame if at all possible.