If the design only has value due to its association with IP, then it should rightly be seen as an infringement.
Parody is a gray area, to be determined by a court/jury ... and whoever has the better lawyer.
Of course, people "get away" with straight-out IP infringement every day, all day, and work overtime on it on Sundays ;-) Some businesses/organizations have their own enforcement people out there looking for infringement, some have contracts with third party companies that do that work for them, others don't have the resources or are erratic about looking for violators. YMMV.
But is it infringement? Yes. :-/
More to the point, and as you allude, you cannot effectively market the design without mentioning the IP that it infringes. Putting it out there without those words will be like locking it in your basement. Using words associated with the IP will be a GPS signal to the IP holder to drop a bomb of lawyers on your secret horde of Gremlins ;-)
Parody is a gray area, to be determined by a court/jury ... and whoever has the better lawyer.
Of course, people "get away" with straight-out IP infringement every day, all day, and work overtime on it on Sundays ;-) Some businesses/organizations have their own enforcement people out there looking for infringement, some have contracts with third party companies that do that work for them, others don't have the resources or are erratic about looking for violators. YMMV.
But is it infringement? Yes. :-/
More to the point, and as you allude, you cannot effectively market the design without mentioning the IP that it infringes. Putting it out there without those words will be like locking it in your basement. Using words associated with the IP will be a GPS signal to the IP holder to drop a bomb of lawyers on your secret horde of Gremlins ;-)