We are creating a dragon headpiece for a childrens show ...I believe that it is going to be a near all foam headpiece (I am not the costmer, just doing a little reserch for a contract laborer). I just tried a quick bond spray adhesive from Elmer's, gotta love Elmers, that I had laying around for some reason. It dried in 3-5...and it took a pretty substantial tug/jerk to rip the foam pieces apart.