I'm gonna say that you might have trouble unloading a stack of pink toddler-size half shirts.. not a lot of call for those, but one never knows.
That piercing shirt, on the other hand, could probably command some cash to the right buyer. I work as a tattoo artist and I'm sure there's a buyer out there somewhere for it. If you list it, be sure to include key words like "body piercing", "tattoo", maybe even "bondage" or "s&m" .. someone wants a shirt with a bunch of dicks on it

.. fixed price for sure.
Post a link if you list it, it's a pretty freakin' cool tee.