If there were a contest for cutest venomous creature the slow loris would win hands down (or elbows out, as the case may be).
The slow loris secretes a toxin from sebaceous glands located in crooks of its elbows. When a loris is fixing to bite, it first coats its own teeth in the poison. If a mother slow loris has to leave her babies unattended she will slick them down with poison to protect them from predators in her absence.
Having worked extensively with the lorises for the last couple years I am absolutely smitten with them. However, while they have the face of those cute and cuddly gremlins, they have the attitude of the evil, after-midnight flipside. With disproportionately huge and sharp canine teeth (very fang-like) and powerful jaw muscles their bites alone can be absolutely agonising. However, the pain is compounded by factors beyond the simple tissue trauma caused by the mechanical damage from the powerful jaws. The lorises are actually toxic! On the inside of their elbows, sebaceous tissue secretes a toxin (like sweat pores, which is rather fitting since the toxic mixture smells remarkably like sweaty socks). The lorises take it into their mouth and deliver it in the bite. It is not the upper and lower jaw vampire like canine teeth that deliver this toxin. It is the innocuously small teeth in the front of the lower jaw which slope forward and help conduct the saliva into the wound.