Hope this link works, fingers crossed;

http://www.cartoonstock.com/directory/H/Heart_gifts.asp

It's about half way down the page.

Very good, anyone notice that its laughing gas being put into the clown.  I bet this would make an interesting effect for a duet to have a pretend operation and pull out prizes and animals ect for a birthday party, you could even have the child be the 'patient' but I do not no about this as I am not a children's entertainer.

The first cartoon - anyone else see the Skull that the monkey's body forms inside the two trees?

Yes I can see the skull, I like those cartoons very good