Looks like an SD card to me

Very close.


Spot on.

Only learned that from Mo to place the subject, in this case SD card, in a wrong location and take Camera end view picture!
Guess SD has been the most frequent subject of this game:)

Now on you Peter.

very clever and tricky

What is This
 

Maybe someone'll get this straight away, But I'm away next week so if it doesn't "go" today there's plenty of time.

Guess that "Plenty of time" is surely wanted.
No idea except a possible left over paint or likewise viscus solution with an non mixing other type clear solution on top!

Back again and still can't make it clear, though I am hungry as we talk so would like to think it is some sort of food but really can't find appetite for it:)
I am still with two non mixable media like oil based residue and water, or something on that line.

Well you have the winning and only entry sassan. It was badly curdled cream on the surface of a black coffee - so you were well on the right lines.

I did not have a clue what it was. Well done sassan.

Arthur: I didn't have a clue either!:)

Alright Peter: Here is an image I just took to keep the game going.
If too easy, name it otherwise ask for clues (First clue, I had Trena in mind when taking this image).

Mmmmmm that's a cool one. Maybe I'll open a beer and have a think. Sure I'll get it eventually - (but I haven't yet:D)