You may still want a small wire frame (bent up wire coat hanger ) in the wing straps would attatch to that. I do not suggest stringing any strap through the foam because it may rip. Safety pins might be ok.
... And to answer that question "Yes I live here and have nothing better to do "
Next Convention: Otakon
Cyan - Show By Rock IDK what day (s)
Friday AM :: Pm Eevee
Saturday AM? :: Pm Sylveon
Backup : Rocker Pikachu