Trigg Laboratories is giving away free samples of their Wet Platinum Premium Lubricant. There is also a $1.00 off printable coupon on the same page. Make sure you use a valid email address because they require email verification before shipping out the samples.
Speaking of free lube, the Wet Synergy Lubricant free sample is still available if you haven’t already claimed one.
UPDATE: An additional free sample of Wet Personal Lubricant is now available.