Robots are appropriate for any occasion. They are neutral but friendly so you can use this card for birthdays, get well soon, congratulations on your new baby, good luck on your exams, anything!
Available at: Nut and Bee http://www.etsy.com/listing/60241234/mini-notes-sweet-sweet-pea ($3.50)
Do your documents love you or love you not?
I'm happy I haz you.
Available at: MimosaCards http://www.etsy.com/listing/57201344/cheeseburger-cat-im-happy-i-haz-you-set ($12 for a set of 10)
What message are you trying to send? Just tell the sock monkeys and they'll take care of it for you.
Available at: Papire http://papire.tumblr.com/post/490921155/animal-index-markers-designs-bear-dog ($1.80)