I have never seen these for sale on ebay, there not mint condition, but does anyone know what someone would pay for them?

http://s535.photobucket.com/albums/ee359/maniac1075/?action=view&current=croc.jpg

http://s535.photobucket.com/albums/ee359/maniac1075/?action=view&current=coletrickle.jpg

Might try the Hotwheels and Matchbox forums.

Due to play wear on vehicles, you might be able to receive a $.25 for both.
I am not an expert but I would not put these in my collection.
Like Hank says, check the HW board.
Richard