Oh, I spot a Seviper! 
I think I do already have this loose Seviper Menko (it’s this one on the left in the picture below, right?), but I might try to locate this unpeeled page.
Do you perhaps know which Shogakukan’s Yōchien magazine volume the Seviper came from (and perhaps also the volume the first one in my picture above came from)?
I have seen the full sheet of the first Menko above, but not sure what magazine it’s from:
Greetz,
Quuador