Beautiful Flickr photos roundup. You will notice a theme here. (All of these are (currently) licensed so you can use them commercially and make derivative things from them. Check the 'Additional Information' section on the individual Flickr pages.)

Beautiful

one
two
three
four
five
six
seven
seven plus one

Cute

nine
ten (These guys do "skeptical" to a T. Perfect.)
eleven
twelve
thirteen
fourteen

Sickeningly cute

fifteen
sixteen
seventeen

Amusing for various other reasons

eighteen
nineteen

Obligatory cat for Ree and similar vile heathens

How many of you jumped straight to this, you rotters? >:(