Where are my ZILLS?

I cannot find my zills anywhere.

I have 4 sets.

1 set of Neferetitis
1 set of Tinker zills
1 set of heavy single holed zills
&
1 set of crappy tin zills.


The only ones I can find are the crappy ones, not that I ever use the heavy single holed ones. 
Obviously they are all hanging out together somewhere.

I thought they might be in the studio - but they weren't.

I've gone through every possible hiding place around here I can think of...

I know I wanted to buy another set but ... this is ridiculous.