LOL I think I lack Ni altogether. I have no idea what that means. Is it supposed to be a fake cow? Cow facade? So we think there is a cow in the field -- eyes are deceiving -- but in reality there is no cow in the field, an alternate perspective Ni style?
I think isomers may work for this, too. Seeing all possible isomers, that is. But I very much liked your post, especially Se/titration.
This actually reminds me of something I saw a while ago...
From
http://periodictable.com.
The disk shown is from the intake stage of a jet engine. This may actually work for Ti, especially STP Ti.
Selenium occurs in (fairly) pure form in nature. This native selenium is exactly as it came out of the ground. It is used in many light-sensing applications: photocopiers, automatic light switches and light meters.
I don't think this is bad either. (Edit: I just realized that, unlike Ti, this requires the description to hold any water. lol)
Unfortunately iron doesn't quite represent Fe properly, haha. I don't think nickel (Ni) or tellurium (Te) really work either. Hm. I probably missed some though. Like Si.