First one is a classic “add a little something fun” extra that accompanied a onesie I bought my girlfriend (seriously). It’s a list of inappropriate uses of footed pajamas, including at an arraignment and as a bridesmaid gown.
The second one is a great example of growth hacking and making word of mouth as easy as possible on your customers. Along with my purchase from Fab, I received four gift cards with the direction to give three to friends (as first-time users only) and use one for myself.