the only way to remove an object with an object they way you are talking about is losing SS, and that is b/c the rules dictates what happens when an object is dropped on top of another.
(i guess it is to simulate the dropped object damaging and destroying the other.

Then the Orange Construct object is placed on/under the object already in the game. (I prefer on it since you'll probably be moving that Orange Construct object around.)

Well you could use a heavy object to destroy an object in a ranged combat attack, but in the terms you are asking, only losing the use of Super Strength causes an object that would be placed on another object to be removed from the game.

Simplier would be to allow a dropped object to stay in the square.

here's another while we ponder my other question

Q: If a construct is moved onto the same square as an opposing figure (preferably a ground opp fig so that its movement is halved when moving off) does that still count for adjacency for Larfleeze to attack/use poison?

Yes. Characters that are either adjacent to or in the same square as an Orange Construct object are considered adjacent to Larfleeze for Poison and close combat purposes.

From the Player's Guide:

It does.

Usually, you are not adjacent to the square you occupy (for example, I cannot use Nanobots to heal via an object in the same square as me). However Larfleeze's special power specifically says:

The underlined portion is what makes the adjacency happen.

Larfleeze must bring the object in within 6 squares of himself, and with LOF, but once they're in play, they don't need to stay that close, do they? They can move all the way across the board from him if I want, right?

That is correct.

New here, signed up just for this two part question, if it is stupid or anything be gentle.

A)Can he drop constructs under friendly characters, Deadshot for example, and stealth goes into effect then? and, may be a more of general rules question, and valid onlly if the above is true

B)Can he use his free action, dropping a construct, on a friendly character and then Sargon teleport it and then Larfleeze make an actual attack?

Thanks, and yeah, be gentle.

To my understanding, for A it should work provided that that square is within range and Larfleeze has a clear Line of Fire to it...

For B, I think you need to look at Sargon's SP again...he can switch an object that is being carried. If he switches a newly made Orange Construct with, say, a heavy that is being carried, the OC is now being carried and isn't adjacent to anything, so you would not be able to Larfleeze use that to attack through. the OC is off the map, not adjacent or in the same square as an opposing character.

you may be right on point B...the wording is confusing on his power.

ILLUSIONARY SWAP: Sargon the Sorcerer can use Smoke Cloud. When he does, he may exchange any two non-immobile objects in the game with each other, as long as one of the objects occupies or is being carried by a characters who occupies the same square as one of the hindering terrain markers he placed. If a chosen object was carried, the replaced object is carried.

Ah ha, though! If you do just swap it with an object that just occupies the same space, then you MAY do a close combat attack against the character now occupying the space that the OC and the character are in. So, my answer is right if carried but wrong if just sharing the space.

absolutely right!!!!

In gaming terms, you never have LOF to a character, you have it to the square. If Batman is on a Light Object, you have LOF to the square when targeting the Object, but you don't have LOF to the square when targeting Batman, do to stealth treating hindering terrain as blocking terrain. You are thus allowed to target the object, destroy it, and Batman is no longer in stealth.

Using this example, you are more than allowed to place an object under a friendly character so long as Larfleeze has LOF to the square. Also, if Deadshot is under a Construct, and an opposing Batman is under a Light Object, Sargon can use Smoke Cloud on Deadshot and swap the Objects, then Larfleeze can attack Batman with a Close Combat Action!

Has there been no ruling yet on whether or not the constructs vanish if Larfleeze's power is outwitted?

Not to my knowledge. I figure that someone is bound to post here when they do.